Grid feeding monitoring relay acc. VDE AR-N 4105 CM-UFD.M21

Data sheet Grid feeding monitoring relay acc. VDE AR-N 4105 CM-UFD.M21 The CM-UFD.M21 is a multifunctional grid feeding monitoring relay for three-phase mains. It provides different monitoring functions in accordance with VDE AR-N 4105 to detect over- and undervoltage (10 minutes average value, voltage increase and decrease protection) as well as any changes in grid frequency (frequency increase and decrease protection). Additionally, vector shift detection is configurable. 2CDC 251 003 S0012 Characteristics Monitoring of three-phase mains for grid feeding Type-tested in accordance with VDE AR-N 4105 Two-channel measuring circuit and two processors to ensure single-fault tolerance Over- and undervoltage, 10 minutes average value as well as over- and underfrequency monitoring Two-tier threshold settings for over-/ undervoltage/ -frequency configurable according to BDEW guideline for generating plants connected to the medium voltage grid Vector shift detection configurable Measured values, thresholds and settings shown on the display All threshold values adjustable as absolute values Default setting according to VDE AR-N 4105 True RMS measuring principle 2 input contacts for feedback signal of subsequent section switch Monitoring of subsequent section switch configurable Tripping delay for each threshold adjustable Alarm memory for up to 99 entries (incl. cause of alarm, measured value, relative timestamp) Test function Simulation mode Code lock and mechanical sealing possible 5 digital outputs (transistor outputs) for signalling the cause of alarm to a superior control system 2 c/o (SPDT) contacts 105 mm (4.13 in) width LEDs for the indication of operational states Marks a CE Order data Grid feeding monitoring relay Type Rated control supply voltage Measuring range Order code CM-UFD.M21 24-240 V AC/DC 3 x 15-520 V AC 1SVR 510 730 R0300

Functions Operating controls 1 2 3 4 5 6 7 8 9 11 10 1 Button Test 2 Indication of operational states Q1: red LED - overvoltage Q2: red LED - undervoltage Q3: red LED - overfrequency Q4: red LED - underfrequency Q5: red LED - error, if PR1 or PR2 activated 1) 3 Dj: red LED - vector shift 4 11: yellow LED - 1st c/o (SPDT) contact energized 21: yellow LED - 2nd c/o (SPDT) contact energized 5 Display (4-digits) Voltage, 10 minutes average value, frequency or vector shift value, alarm and error messages 6 Indication of time Time: yellow LED - a time delay is displayed 7 Indication of device mode 8 Button Set / Reset 9 Button Up / Down 10 Indication of operational states L1: yellow LED - kind of measured value L2: yellow LED - kind of measured value L3: yellow LED - kind of measured value N: yellow LED - kind of measured value 11 Status indication of device locking and sealable lock button Red LED - device is locked 1) if PR3 or PR4 activated, 2nd threshold referring to LED Q1-Q4 More details see LEDs, status information and fault messages on page 9. 2 - CM-UFD.M21 - Grid feeding monitoring relay Data sheet

Application The CM-UFD.M21 is a monitoring relay for feeding in three-phase mains. The device is connected between the decentral electrical energy source such as photovoltaic systems, wind turbines, block-type thermal power stations and the public grid. In case the public grid is disconnected due to any reason, for instance during maintenance work, the CM-UFD.M21 recognizes this powerless situation. Then, in conjunction with a section switch, the CM-UFD.M21 disconnects the decentral electrical energy source from the public grid, shows the corresponding alarm on the display and signals the cause of alarm to a superior control system. The grid feeding monitoring relay detects over- and undervoltage (10 minutes average value, voltage increase and decrease protection) as well as any changes in grid frequency (frequency increase and decrease protection). Additionally, vector shift detection is configurable. Operation The CM-UFD.M21 can be used to monitor 3-wire as well as 4-wire AC systems. It provides 2 c/o (SPDT) contacts for disconnection of the decentral electrical energy source from the public grid and two separate input contacts for the feedback signal of the section switch in order to enable monitoring of the disconnection. Five transistor outputs allow the signalling of the cause of alarm to a superior control system. The unit is adjusted by front-face setting buttons and a display, which allows the visualization of measured values and alarms. Furthermore, the display enables the selection of presettings as well as the precise adjustment of threshold values and delay times. To disable vector shift detection, jumper terminals Dj 1 and D j 2. All operational states are shown on the display and signalled by the front-face LEDs. See table Indication of operational states on page 9. Button Test Pressing the front-face button Test de-energizes the output relays immediately in order to disconnect the decentral electrical energy source from the public grid. If the input contacts Y0, Y1, Y2 for the feedback loop of the section switch are connected and monitoring of the feedback signal is activated, the CM-UFD.M21 will display the disconnection time of the system (reaction time of CM-UFD.M21 + tripping time of the section switch) until further pressing of any button. Vector shift detection To disable vector shift detection, jumper terminals Dj 1 and D j 2. ϕ1 ϕ2 2CDC 252 016 F0012 To set-up vector shift detection vsr, go to menu mode and see Control charts on page 7 for more details. The detection can be configured to single-phase1ph, to trip in case of a vector shift in one of the three phase, or three-phase 3PH, to trip only in case of a simultaneous vector shift in all three phases. After applying control supply voltage or opening contacts Dj 1 and D j 2, the vector shift detection is suppressed for the duration of the adjusted suppression time deon. Display mode (backmost decimal point 6 OFF) The CM-UFD.M21 always starts-up in display mode and shows the values (voltage, frequency, etc.) as well as alarm messages and error codes. Set / Reset Press shortly to display the next measured value / alarm counter. Press for > 2 s to reset, quit error message. Press for > 4 s to display the selected program (e.g. PR1). Press for > 10 s to display the firmware version (e.g. 0-02). Up / Down Press shortly to change to menu mode, display of alarm memory (button Down) or cumulative time of alarms (button Up). Additional pressing of button Set for > 2 s makes a reset of the stored values. Press button Up / Down for > 2 s to display the maximum / minimum measured values (device needs to be unlocked). Additional pressing of button Set for > 2 s deletes the stored values. Data sheet CM-UFD.M21 - Grid feeding monitoring relay - 3

Menu mode (backmost decimal point 7 ON) Set / Reset Press shortly to change to configuration mode. Press for > 2 s to confirm last entry and return to display mode. Up / Down Press shortly to select menu item; return to display mode. If more than 30 seconds pass before a key is pressed, the CM-UFD.M21 automatically returns to display mode. Configuration mode (backmost decimal point 7 flashing) The display alternates between parameter name and currently set parameter value until either button Up or button Down is pressed to change the parameter value. If more than 2 seconds pass before a key is pressed, the display starts to alternate again. Set / Reset Press shortly to confirm and go to next parameter. Press for > 2 s to confirm last entry and return to display mode. Up / Down Press shortly / for a long time to modify the value slowly / rapidly. Press buttons Up and Down simultaneously to set the adjusted value to zero. If more than 30 seconds (in simulation mode 15 minutes) pass before a key is pressed, the CM-UFD.M21 automatically applies the last entry and returns to display mode. Simulation mode The simulation mode allows the simulation of measured voltage and frequency values in order to check the settings and the correct tripping of the CM-UFD.M21. During the simulation, alarm and error messages will only be displayed via LEDs. If the device is sealed or locked, simulation is not possible. If the input contacts Y0, Y1, Y2 for the feedback loop of the section switch are connected and monitoring of the feedback signal is activated, the CM-UFD.M21 will display the disconnection time of the system (reaction time of CM-UFD.M21 + tripping time of section switch) until further pressing of any button. To start simulation: 1. Change to menu mode and select Si (button Up / Down) and press button Set. 2. The display alternates between Si and the measurement parameter. 3. Select the measurement parameter to be simulated (button Up / Down) and press button Set. 4. The value of the simulated measurement parameter can be altered by pressing button Up / Down. Once the simulated measurement value and the adjusted threshold value coincide, the output relays de-energize. Note: The simulation of voltage values always takes into account the last set frequency value of simulation and vice versa. To stop simulation: Press button Set to return to menu mode. The CM-UFD.M21 continues to monitor the adjusted threshold values. If more than 15 minutes pass before a key is pressed, the CM-UFD.M21 automatically returns to display mode. Hint: If a threshold higher than the adjusted 10 minutes average value needs to be simulated, monitoring of UM has to be temporarily deactivated. The same applies to U,, when simulating U,,, and to U_ when simulating U in PR3 PR6. 4 - CM-UFD.M21 - Grid feeding monitoring relay Data sheet

Alarm counter The alarm counter Ac will be incremented at every alarm and logs up to 99 alarms, which allows the documentation of the number of alarms since last resetting. To view the alarm counter, change to display mode and see Control charts on page 7 for more details. Cumulative time of alarms The cumulative time of alarms tal displays the duration of all cumulated disconnections of the decentral electrical energy source from the public grid. Recording only with applied control supply voltage. To view the cumulative time of alarms, change to display mode and see Control charts on page 7 for more details. Press button Set / Reset for > 2 s to reset cumulative time of alarms and alarm counter. Alarm memory The non-volatile alarm memory contains the last 99 alarms including simulated alarms. The LEDs indicate the cause of alarm and the display alternates between tripping value and relative timestamp [hours]. To view the alarm memory, change to display mode and see Control charts on page 7 for more details. The alarm memory will only be reset when changing program. Scan mode The scan mode Scn allows the cyclic display of all measured values. The corresponding display duration dit for each measured value is adjustable. To start scan mode, change to display mode and see Control charts on page 7 for more details. To change the display duration dit, go to menu mode and see Control charts on page 7 for more details. Display refresh rate To change the display refresh rate ddi, go to menu mode and see Control charts on page 7 for more details. Code lock The code lock can be activated to protect the adjusted parameters. To set Pin and lock the device: 1. Change to menu mode and select CodE (button Up / Down) and press button Set 2. Enter Pin - default setting 504 (button Up / Down) and press button Set An incorrect Pin will be notified by Err flashing three times 3. Set code lock to off or on (button Up / Down) and press button Set 4. Enter new Pin (button Up / Down) or go to 5.) to keep Pin unchanged 5. Press button Set to confirm on flashing three times, code lock activated off flashing three times, code lock deactivated Lock button (sealable) Slightly lift the button cover and turn 180. Actuate the Lock button by strong pressing on the button cover > 2 s (LED starts flashing) until the CM-UFD.M21 is locked or unlocked. In case of setting attempts Loc is displayed for 3 seconds if device has been locked. Sealing The Lock button can be sealed to protected against unauthorized changes. Data sheet CM-UFD.M21 - Grid feeding monitoring relay - 5

Electrical connection A1 A2 A2 V Q Q1 Q2 Q3 Q4 Q5 12 11 14 22 21 24 A1-A2 Control supply voltage L1, L2, L3, N Measuring input A1 A2 11 21 11-12/14 21-22/24 1st c/o (SPDT) contact 2nd c/o (SPDT) contact U <, U>, U>>, f<, f>, ϕ Y0-Y1 1st input contact for feedback signal L1 L2 L3 ϕ1 ϕ2 N 12 14 22 24 Y0 Y1 Y2 L1 L2 L3 N 2CDC 252 002 F0012 Y0-Y2 Dj1-Dj2 V Q Q1 2nd input contact for feedback signal Vector shift detection Jumper = vector shift detection disabled Supply voltage of digital outputs Digital output for overvoltage Q2 Digital output for undervoltage Q3 Digital output for overfrequency Q4 Digital output for underfrequency Q5 Digital output for: error, if PR1 or PR2 activated if PR3 or PR4 activated, 2nd threshold referring to LED Q1-Q4 Connection diagram Configuration and settings Program setup The suitable program must be set on the CM-UFD.M21 in accordance with the application. If the CM-UFD.M21 is sealed / locked (red LED on), sealing has to be deactivated first. PR Connection Threshold values Voltage 1* 3 AC with N Low voltage 230 V 2 3 AC w/o N 1 x overvoltage, 1 x undervoltage 1 x overfrequency, 1 x underfrequency 400 V 10 min average value, 1 x vector shift 3 3 AC with N Medium voltage 57.7 V 4 3 AC w/o N 2 x overvoltage, 2 x undervoltage 100 V 5 3 AC with N 2 x overfrequency, 2 x underfrequency 230 V 6 3 AC w/o N 10 min average value, 1 x vector shift 400 V * Default setting Adjustment process: If present, remove the seal (only authorized person) 1. Apply control supply voltage at A1-A2 2. Slightly lift the button cover and turn 180 3. Actuate the small blue button by strong pressing on the button cover (LED starts flashing) until the flashing green LED turns steady. 4. Press button Up 1x -> Display InFo 5. Press button Set / Reset 5x -> Display PR1 6. Set the program with the button Up / Down 7. Press button Set / Reset 1x -> Display no 8. Press button Down 1x -> Display yes 9. Press button Set / Reset Device resets and starts with the newly selected program Hint: When changing programs, all parameters of the selected program are reset to "default settings" (see Default settings and firmware version on page 11). Only change the parameters after having selected the correct program. 6 - CM-UFD.M21 - Grid feeding monitoring relay Data sheet

Control charts PR1 3 AC with N, PR2 3 AC w/o N, acc. to VDE-AR-N 4105 1) 3AC+N = 300 V [ ] = Unit Pressing buttons Up and Down simultaneously, sets the values to the smallest one. Code-Reset = Press button Set 2 s while applying control supply voltage (Pin = 504) Data sheet CM-UFD.M21 - Grid feeding monitoring relay - 7

PR3, PR5 3 AC with N, PR4, PR6 3 AC w/o N acc. to BDEW - Technical Guideline Generating Plants Connected to the Medium-Voltage Network, Guideline for generating plants connection to and parallel operation with the medium-voltage network, June 2008 issue. 1) 3AC+N = 300 V [ ] = Unit Pressing buttons Up and Down simultaneously, sets the values to the smallest one. Code-Reset = Press button Set 2 s while applying control supply voltage (Pin = 504) 2 8 - CM-UFD.M21 - Grid feeding monitoring relay Data sheet

Indication of operational states LEDs, status information and fault messages Function Output relay energized Indication of time Indication of device locking Display mode Menu mode Configuration mode Q1: red LED >U Q2: red LED <U Q3: red LED >F Q4: red LED <F Q5: red LED Dj: red LED 11-12/14, 21-22/24: yellow LED V Time: yellow LED V L1: yellow LED L2: yellow LED L3: yellow LED N: yellow LED red/green LED V red: locked green: unlocked Scan mode Measured values 1) Error or 2nd threshold value in Pr3 6 V 10 minutes average value (UN) V OFF OFF OFF OFF OFF OFF OFF 10 minutes average value (UN), ON-delay active 10 minutes average value (UN), OFF-delay active Display AL N + Measured value 2) OFF OFF OFF OFF OFF OFF V OFF Measured value 2) W OFF OFF OFF OFF OFF OFF V Time Overvoltage (U>) V OFF OFF OFF OFF OFF OFF OFF AL + Measured value 2) Overvoltage (U>), ON-delay active OFF OFF OFF OFF OFF OFF V OFF Measured value 2) Overvoltage (U>), OFF-delay active W OFF OFF OFF OFF OFF OFF V Time Overvoltage (U>>) V OFF OFF OFF V OFF OFF OFF AL + Measured value 2) Overvoltage (U>>), ON-delay active OFF OFF OFF OFF OFF OFF V OFF Measured value 2) Overvoltage (U>>), OFF-delay active W OFF OFF OFF W OFF OFF V Time Undervoltage (U<) OFF V OFF OFF OFF OFF OFF OFF AL + Measured value 2) Undervoltage (U<), ON-delay active OFF OFF OFF OFF OFF OFF V OFF Measured value 2) Undervoltage (U<), OFF-delay active OFF W OFF OFF OFF OFF OFF V Time Undervoltage (U<<) OFF V OFF OFF V OFF OFF OFF AL + Measured value 2) Undervoltage (U<<), ON-delay active OFF OFF OFF OFF OFF OFF V OFF Measured value 2) Undervoltage (U<<), OFF-delay active OFF W OFF OFF W OFF OFF V Time Overfrequency (f>) OFF OFF V OFF OFF OFF OFF OFF AL + Measured value 2) Overfrequency (f>), ON-delay active OFF OFF OFF OFF OFF OFF V OFF Measured value 2) Overfrequency (f>), OFF-delay active OFF OFF W OFF OFF OFF OFF V Time Overfrequency (f>>) OFF OFF V OFF V OFF OFF OFF AL + Measured value 2) Overfrequency (f>>), ON-delay active OFF OFF OFF OFF OFF OFF V OFF Measured value 2) Overfrequency (f>>), OFF-delay active OFF OFF W OFF W OFF OFF V Time Underfrequency (f<) OFF OFF OFF V OFF OFF OFF OFF AL + Measured value 2) Underfrequency (f<), ON-delay active OFF OFF OFF OFF OFF OFF V OFF Measured value 2) Underfrequency (f<), OFF-delay active OFF OFF OFF W OFF OFF OFF V Time Underfrequency (f<<) OFF OFF OFF V V OFF OFF OFF AL + Measured value 2) Underfrequency (f<<), ON-delay active OFF OFF OFF OFF OFF OFF V OFF Measured value 2) Underfrequency (f<<), OFF-delay active OFF OFF OFF W W OFF OFF V Time Vector shift detection OFF OFF OFF OFF V OFF OFF AL + Measured value 2) Vector shift detection, OFF-delay active OFF OFF OFF OFF W OFF V Time Measured value (Voltage L1 against N) V OFF OFF V Measured value (Voltage L2 against N) OFF V OFF V Measured value (Voltage L3 against N) OFF OFF V V Measured value (Voltage L1 against L2) V V OFF OFF Measured value (Voltage L2 against L3) OFF V V OFF Measured value (Voltage L1 against L3) V OFF V OFF Vector shift (L1, L2, L3) X X X 1) In scan mode, all measured values are displayed cycliciy. The display duration dit is adjustable. 2) The adjusted measured value is displayed. Backmost decimal point OFF V X Data sheet CM-UFD.M21 - Grid feeding monitoring relay - 9

Example of application L1 L2 L3 N where applicable, a transformer Low voltage grid m6 A *) A1 A2 11 21 L1 L2 L3 N 12 14 22 24 Y2 Y1 Y0 Expansion of existing installation: K1 A in series with A K1 K2 B in series with B K2 A B *) Optional use of n/o contacts, automatic recognition For example, remote disconnection via ripple control receiver Inverter(s) Generator(s) Power plant 2CDC 252 013 F0212 10 - CM-UFD.M21 - Grid feeding monitoring relay Data sheet

Default settings and firmware version When changing program, all parameters are reset to the default settings. Default settings Low voltage Medium voltage 3 AC + N 230 V 3 AC 400 V 3 AC + N 57.7 V 3 AC 100 V 3 AC + N 230 V 3 AC 400V Menu point Parameter Unit Pr1 * Pr2 Pr3 Pr4 Pr5 Pr6 U,,: Alarm on/off - - on on on on U,,: Overvoltage V - - 66.4 115 264 458 U,, H,,: Hysteresis V - - 1.0 1.0 3.0 3.0 dal: ON-delay s - - 0.10 0.10 0.10 0.10 dof: OFF-delay s - - 60 60 60 60 U,: Alarm on/off on on on on on on U,: Overvoltage V 264 458 62.3 108 249 430 U, H,: Hysteresis V 5.0 5.0 1.0 1.0 3.0 3.0 dal: ON-delay s 0.10 0.10 60.00 60.00 60.00 60.00 dof: OFF-delay s 60 60 60 60 60 60 UM: Alarm on/off on on off off off off UM: Overvoltage V 253 438 253 438 253 438 UM HM: Hysteresis V 3.0 3.0 3.0 3.0 3.0 3.0 dal: ON-delay s 0.10 0.10 0.10 0.10 0.10 0.10 dof: OFF-delay s 60 60 60 60 60 60 U_: Alarm on/off on on On On on on U_: Undervoltage V 184 318 46.2 80.0 184 318 U_ H_: Hysteresis V 5.0 5.0 1.0 1.0 3.0 3.0 dal: ON-delay s 0.10 0.10 2.70 2.70 2.70 2.70 dof: OFF-delay s 60 60 60 60 60 60 U : Alarm on/off - - off off off off U : Undervoltage V - - 26.0 45.0 104 180 U H : Hysteresis V - - 1.0 1.0 2.0 2.0 dal: ON-delay s - - 0.30 0.30 0.30 0.30 dof: OFF-delay s - - 60 60 60 60 F,,: Alarm on/off - - off off off off F,,: Overfrequency Hz - - 51.50 51.50 51.50 51.50 F,, H,,: Hysteresis Hz - - 1.45 1.45 1.45 1.45 dal: ON-delay s - - 0.10 0.10 0.10 0.10 dof: OFF-delay s - - 60 60 60 60 F, F,: Alarm on/off on on on on on on F,: Overfrequency Hz 51.50 51.50 51.50 51.50 51.50 51.50 H,: Hysteresis Hz 1.45 1.45 1.45 1.45 1.45 1.45 dal: ON-delay s 0.10 0.10 0.10 0.10 0.10 0.10 dof: OFF-delay s 60 60 60 60 60 60 Data sheet CM-UFD.M21 - Grid feeding monitoring relay - 11

Default settings Low voltage Medium voltage 3 AC + N 230 V 3 AC 400 V 3 AC + N 57.7 V 3 AC 100 V 3 AC + N 230 V 3 AC 400V Menu point Parameter Unit Pr1 * Pr2 Pr3 Pr4 Pr5 Pr6 F_: Alarm on/off on on on on on on F_: Underfrequency Hz 47.50 47.50 47.50 47.50 47.50 47.50 F_ H_: Hysteresis Hz 1.00 1.00 1.00 1.00 1.00 1.00 dal: ON-delay s 0.10 0.10 0.10 0.10 0.10 0.10 dof: OFF-delay s 60 60 60 60 60 60 F : Alarm on/off - - off off off off F v5r rel ddi Si F : Underfrequency Hz - - 47.50 47.50 47.50 47.50 H : Hysteresis Hz - - 1.00 1.00 1.00 1.00 dal: ON-delay s - - 0.10 0.10 0.10 0.10 dof: OFF-delay s - - 60 60 60 60 v5r: Alarm on/off off off off off off off vsr: Vector shift 10.0 10.0 10.0 10.0 10.0 10.0 dof: OFF-delay s 3 3 3 3 3 3 deon: Suppression time s 2 2 3 3 3 3 v5r: Number of phases 3ph 3ph 3ph 3ph 3ph 3ph trel: Switching time Y1,Y2 ddi: Display refresh rate dit: Display duration SCn s 5.0 5.0 off off off off s 0.5 0.5 0.5 0.5 0.5 0.5 s 3.5 3.5 3.5 3.5 3.5 3.5 U: Voltage V 230 400 57.7 100 230 400 F: Frequency Hz 50.00 50.00 50.00 50.00 50.00 50.00 v5r: Vector shift 0.0 0.0 0.0 0.0 0.0 0.0 CodE pin: Pin code 504 504 504 504 504 504 Info *factory preset fnr: Firmware version 0-02 0-02 0-02 0-02 0-02 0-02 snr: Serial number xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx h: Operating hours h xxxxx xxxxx xxxxx xxxxx xxxxx xxxxx err: Error counter xxx xxx xxx xxx xxx xxx Pr: Program 1 2 3 4 5 6 Protective functions, default settings according to VDE-AR-N 4105 section 6.5.2: Voltage increase protection U>> U, 1.15 U n 100 ms Voltage increase protection U> UM 1.1 U n 100 ms Voltage decrease protection U< U_ 0.8 U n 100 ms Frequency increase protection f> F, 51.5 Hz 100 ms Frequency decrease protection f< F_ 47.5 Hz 100 ms 12 - CM-UFD.M21 - Grid feeding monitoring relay Data sheet

Troubleshooting Error Cause Remedy EEEE or -EEE Measured voltage, frequency or the vector Consider the measuring range appears in the display shift is too large or too small Err4 appears in the display Too high internal measurement deviation of the two measuring channels Perform a reset: Interrupt the conrol supply voltage for >5 s Err5 appears in the display Error internal regulation Err6 appears in the display Err7 appears in the display + LED of the faulty output circuit is lightning Err8 appears in the display Communication error internal interface Error feedback contacts Hysteresis error: overlapping of the release points Feedback contacts not connected - set trel -> off Feedback contacts connected - check the correct connection - adjust the turn-on time of the section switch under trel. - perform a reset: Interrupt the conrol supply voltage for >5 s Upper threshold value must be higher than the lower threshold value, check the threshold values Err9 appears in the display Configuration error Reset to factory settings, see Program setup on page 6 A time expires in the display If an OFF-delay dof is active, the time runs down in the display (the shortest one first) Wait until the time is complete (depending on the setting, several times may elapse one after the other) Device cannot be configured / only the threshold values can be configured Code lock / Sealing activated When having problems with the code lock (Pin forgotten), the lock can be deactivated and the Pin can be reset to 504, by pressing the button until Code / off is shown in the display, while switching on the control supply voltage. Implausible voltage values Pr selected with N, but N not connected Select Pr without N or connect N Loc appears in the display Sealing is active See Program setup on page 6 Code appears in the display Code lock is active See Code lock on page 5 Data sheet CM-UFD.M21 - Grid feeding monitoring relay - 13

Technical data Data at T a = 25 C and rated values, unless otherwise indicated Input circuits Type CM-UFD.M21 Supply circuit A1-A2 Rated control supply voltage U s 24-240 V AC/DC Rated control supply voltage U s tolerance -15...+20 % Rated frequency DC and 50/60 Hz respectively Frequency range AC 40-70 Hz Typical current / power consumption 24 V DC 92 ma / 2.2 W 230 V AC 25 ma / 5.7 VA Power failure buffering time 5 ms Measuring circuit Monitoring functions over-/undervoltage U,,, U, / U_, U yes, can be switched off over-/underfrequency F,,, F, / F_, F yes, can be switched off 10 minutes average value per phase UM yes, can be switched off vector shift v5r yes, can be switched off L1, L2, L3 (N) Measuring ranges over-/undervoltage U,,, U, / U_, U 10-310 V AC (L1, L2, L3, N) Threshold values Hysteresis related to the threshold value Accuracy of measurements over-/underfrequency F,,, F, / F_, F vector shift v5r over-/undervoltage, 10 minutes average value U,,, U, / U_, U, UM over-/underfrequency F,,, F, / F_, F vector shift v5r over-/undervoltage, 10 minutes average value H,,, H, / H_, H, HM over-/underfrequency H,,, H, / H_, H voltage measurement L1,L2,L3,N voltage measurement L1,L2,L3 frequency measurement 15-530 V AC (L1, L2, L3) 40-70 Hz 0 +45 15-300 V AC, adjustable in 0.1 V steps (< 100 V) / in 1 V steps (> 100 V) (L1, L2, L3, N) 15-520 V AC, adjustable in 0.1 V steps (< 100 V) / in 1 V steps (> 100 V) (L1, L2, L3) 45-65 Hz, adjustable in 0.01 Hz steps 2-20, adjustable in 0.1 steps 1.0-99.9 V, adjustable in 0.1 V steps 0.05-10.00 Hz, adjustable in 0.05 Hz steps ± 0.6 % of measured value ± 0.8 % of measured value ± 0.04 Hz ± 1 digit Display accuracy > 100 V: ± 1 digit (1 V) Rated frequency of measuring signal Frequency range of the measuring signal Measuring principle Max. reaction time (Measuring cycle CM-UFD.M21 + switching time of the relays) overvoltage U,,, U, undervoltage U_, U overfrequency F,,, F, underfrequency F_, F 10 minutes average value per phase UM vector shift v5r < 100 V: ± 1 digit (0.1 V) 50/60 Hz 40-70 Hz True RMS < 65 ms < 65 ms < 65 ms < 65 ms depending on the voltage jump < 50 ms Accuracy within the rated control supply voltage tolerance U 0.1 % Accuracy within the temperature range U 0.15 % / C 14 - CM-UFD.M21 - Grid feeding monitoring relay Data sheet

Feedback contacts Y0, Y1, Y2 Number 2 Kind of inputs signal source (Y0) feedback loop section switch 1 (Y1) feedback loop section switch 2 (Y2) Electrical isolation from the supply voltage yes from the measuring circuit no from the relay outputs yes from the transistor outputs yes Type of triggering volt-free triggering Max. switching current in the control circuit 4 ma Max. cable length at the control input 5 m No-load voltage at the control inputs < 35 V DC Feedback time section switch trel 0.5-99.0 s, adjustable in 0.1 s steps Control circuit vector shift detection Dj1-Dj2 Type of triggering volt-free triggering Electrical isolation from the supply voltage yes from the measuring circuit no from the relay outputs yes from the transistor outputs yes Control input, control function jumpered = vector shift detection de-activated open = vector shift detection activated (additional configuration in the software is necessary) Max. switching current in the control circuit 4 ma Max. cable length at the control input 5 m No-load voltage at the control inputs < 35 V DC Timing circuits Start-up delay (prior to first grid connection) Restart delay (after a short-term interruption <3 s) Tripping delay Adjustment range of the ON-delay Tolerance of the ON-delay Adjustment range of the OFF-delay Tolerance of the OFF-delay Delayed activation of the vector shift detection deon over-/undervoltage, over-/ underfrequency dal over-/undervoltage, over-/ underfrequency dof vector shift dof see 'adjustable OFF-delay' dof 5 s (fixed) ON-and/or OFF-delay configurable 0.05-60.00 s, adjustable in 0.01 s steps 0.1 % ± 5 ms 0 (>200 ms)-999 s, adjustable in 1 s steps 3-240 s, adjustable in 1 s steps 0.1 % ± 105 ms 2-20 s, adjustable in 1 s steps (Delay is effective just once after switching on or restart) Accuracy within the rated control supply voltage tolerance t 0.01 % Accuracy within the temperature range t 0.0001 % / C User interface Indication of operational states See LEDs, status information and fault messages on page 9 Data sheet CM-UFD.M21 - Grid feeding monitoring relay - 15

Output circuits Relay outputs Kind of outputs 11-12/14 Relay, 1st c/o (SPDT) contact 21-22/24 Relay, 2nd c/o (SPDT) contact 2 x 1 c/o (SPDT) contact Operating principle closed-circuit principle Contact material AgNi Rated operational voltage U e (IEC/EN 60947-1) 250 V AC Minimum switching voltage / minimum switching current 12 V / 10 ma Maximum switching voltage / maximum switching current 400 V AC / 6A Rated operational current I e (IEC/EN 60947-5-1) AC12 (resistive) 230 V 6 A AC15 (inductive) 230 V 1.5 A DC12 (resistive) 24 V 6 A DC13 (inductive) 24 V 2 A Mechanical lifetime 30 x 10 6 switching cycles Electrical lifetime at AC12, 230 V AC, 6 A 1 x 10 6 switching cycles Maximum fuse rating to achieve short-circuit protection n/c contact 6 A, operating class gg/gl n/o contact 6 A, operating class gg/gl Conventional thermal current I th (IEC/EN 60947-1) 6 A Transistor outputs Number 5 Rated operational voltage U e 24 V DC Operational voltage range 4.5-27 V DC Residual ripple 5 % Current state "0" max. 0.1 ma / output state "1" max. 20 ma / output Electrical isolation from the supply voltage yes from the measuring circuit yes from the relay outputs yes from the inputs of the feedback contacts yes Maximum fuse rating to achieve short-circuit protection 100 ma fast-acting General data MTBF on request Duty time 100% Dimensions (W x H x D) product dimensions 105 x 90 x 69 mm (4.13 x 3.54 x 2.72 in) packaging dimensions 175 x 107 x 130 mm (6.89 x 4.21 x 5.12 in) Weight net weight 0.225 kg (0.496 lb) gross weight 0.343 kg (0.756 lb) Mounting DIN rail (IEC/EN 60715) TH 35-7.5, snap-on mounting without any tool Mounting position any Minimum distance to other units vertical not necessary horizontal not necessary Degree of protection housing / terminals IP30 / IP20 16 - CM-UFD.M21 - Grid feeding monitoring relay Data sheet

Electrical connection Wire size fine-strand with(out) wire end ferrule 1 x 0.5-2.5 mm² (1 x 20-14 AWG) Stripping length Tightening torque rigid 1 x 0.5-4 mm² (1 x 20-12 AWG) 7 mm (0.28 in) 0.5 Nm (4.42 lb.in) Environmental data Ambient temperature ranges operation -20...+55 C storage -20 +70 C transport -20 +70 C Damp heat, cyclic (IEC 60068-2-30) 55 C, 6 cycles Climatic category (EN 50178) 3K3 Vibration, sinusoidal (IEC/EN 60255-21-1) Class 1 Shock (IEC/EN 60255-21-2) Class 1 Isolation data Rated insulation voltage U i supply/measuring/output circuits (IEC/EN 60947-1, IEC/EN 60664-1) output circuit 1/output circuit 2 300 V Rated impulse withstand voltage U imp supply/measuring/output circuits (IEC/EN 60947-1, IEC/EN 60664-1) output circuit 1/output circuit 2 4 kv Basic insulation (IEC/EN 60664-1) supply/measuring/output circuits output circuit 1/output circuit 2 300 V Test voltage, routine test supply/measuring/output circuits (IEC/EN 60255-27, IEC/EN 61010-1) output circuit 1/output circuit 2 3820 V DC Test voltage, type test supply/measuring/output circuits (IEC/EN 60255-27) output circuit 1/output circuit 2 4600 V DC Protective separation supply/measuring/output circuits (IEC/EN 61140, EN 50178) output circuit 1/output circuit 2 300 V Pollution degree (IEC/EN 60664-1) 2 Overvoltage category (IEC/EN 60664-1) III Standards / Directives Product standard IEC/EN 60255 Application standards Low Voltage Directive EMC Directive RoHS Directive VDE-AR-N 4105, BDEW 2006/95/EC 2004/108/EC 2002/95/EC Electromagnetic compatibility Interference immunity to IEC/EN 61000-6-1, IEC/EN 61000-6-2 electrostatic discharge IEC/EN 61000-4-2 Level 3, 6 kv / 8 kv radiated, radio-frequency, electromagnetic field IEC/EN 61000-4-3 Level 3, 10 V/m (80-1000 MHz) Level 2, 3 V/m (1400-2000 MHz) Level 1, 1 V/m (2000-2700 MHz) electrical fast transient / burst IEC/EN 61000-4-4 Level 4, 4 kv / 5 khz surge IEC/EN 61000-4-5 Level 3, 1 kv L-L, 2kV L-earth conducted disturbances, induced by IEC/EN 61000-4-6 Level 3, 10 V radio-frequency fields Interference emission IEC/EN 61000-6-3, IEC/EN 61000-6-4 high-frequency radiated IEC/CISPR 22, EN 55022 Class B high-frequency conducted IEC/CISPR 22, EN 55022 Class B Data sheet CM-UFD.M21 - Grid feeding monitoring relay - 17

Technical diagrams Load limit curves U V 300 200 100 80 60 50 40 30 20 10 0.1 0.2 0.5 resistive load 1 2 4 6 10 I A 2CDC 252 010 F0212 U V 300 200 100 80 60 50 40 30 20 10 0.1 0.2 0.5 resistive load 1 2 5 10 I A 2CDC 252 011 F0212 AC load (resistive) DC load (resistive) Switching cycles 10 7 10 6 250 V AC resistive load 10 5 10 4 2 4 6 8 10 12 14 16 Switching current [A] 2CDC 252 012 F0212 Contact lifetime 18 - CM-UFD.M21 - Grid feeding monitoring relay Data sheet

Dimensions in mm and inches 58 2.28 48 1.89 16.5 0.65 61.8 2.43 45 1.77 3 0.12 90 3.54 105 4.13 2CDC 252 008 F0012 Further documentation Document title Document type Document number Electronic products and relays Technical catalogue 2CDC 110 004 C020x CM-UFD.M21 Grid feeding monitoring relay Instruction sheet 1SVC 510 810 M0000 You can find the documentation on the internet at www.abb.com/lowvoltage -> Control Products -> Electronic Relays and Controls -> Three Phase Monitors. Data sheet CM-UFD.M21 - Grid feeding monitoring relay - 19

Contact us ABB STOTZ-KONTAKT GmbH P. O. Box 10 16 80 69006 Heidelberg, Germany Phone: +49 (0) 6221 7 01-0 Fax: +49 (0) 6221 7 01-13 25 E-mail: info.desto@de.abb.com You can find the address of your local sales organisation on the ABB home page http://www.abb.com/contacts -> Low Voltage Products and Systems Document number 2CDC 112 193 D0201 (07.2012) Note: We reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail. ABB AG does not accept any responsibility whatsoever for potential errors or possible lack of information in this document. We reserve all rights in this document and in the subject matter and illustrations contained therein. Any reproduction, disclosure to third parties or utilization of its contents in whole or in parts is forbidden without prior written consent of ABB AG. Copyright 2012 ABB All rights reserved