Ashida Numerical Directional 3O/C + 1E/F PROTH. PROTH. ERR L5 FAULT PKP PKP FAULT L6 PT DT REC LOCK BF L7 CLOSE TRIP TRIP CLOSE ADR 145B 245B Protection Features: 4 Element (3 Phase + EF +sensitive EF) Directional / Non Directional Over current IDMT/DMT. Negative Phase Sequence element (46) Selection of Curve: Five selectable curves (Normal Inverse1 (C1), Normal Inverse2, (C2) Very inverse (C3), Extremely Inverse (C4), Long Time Inverse (C5)) and Define Time (C6). Instantaneous Over-Current Protection with adjustable timer. Breaker Failure detection. In-built CB Trip Circuit Supervision function during pre closing and post closing of CB. In built Auto Reclose Relay (ARR). On site CT Secondary selection 1A or 5A. In built VT supervision features and under/over voltage Alarm. Internal reconstruction phase-phase voltage and open delta voltage required for direction detection. Internal calculation of zero seq. EF current (3Io) and Zero sequence voltage (3Vo) for directional detection for Earth fault. NDV Protection. Relay Design Features: Large 20x4 LCD display for Parameter and setting display. Disturbance Recorder. Up 3sec of actual waveform of current & voltage along with logical and physical status are captured & saved in the built-in memory with date time stamping, for analyzing fault condition & fault location. Fully communicable with IEC standard open protocol. 60870-5-103 Separate Communication Port for SCADA (RS485) as well as Local testing (RS232C) Online display of CB status and other digital and logical status. Continuous monitoring of module s internal hardware and alarm generation in case of failure of any critical components. 6 Digital Output contacts for local alarm as well as tele-signalling. Page 1 / 15
2 Setting Groups. CB CLOSE/TRIP from Relay keyboard 8 Optically isolated digital status input for monitoring of status and avoid used of external relay logic. 2 dedicated status input for Trip Circuit Monitoring. 100 nos of event memory, event such CB close, Trip, digital status change, relay pkp etc. All events are with date and time stamped up to 1ms. 10 nos of Fault data stored with keypad interface and time stamping. Display of Voltage, current, PF, Active, Reactive Power in terms of primary value. Description: ADR245B is second generation Numerical Directional Over Current Earth fault Relay. It consist all the necessary protection and monitoring functions required for Normal feeder It consist of 1. High Speed Digital DSP Controller 2. Analog Measuring Module 3. Power supply Module 4. Digital Input output module. The High speed Digital Signal Controller continuously monitors phase, E/F current and PT Secondary voltage along with different optical isolated status connections. The highspeed micro-controller samples these current and voltage signals through a A/D converter. The Digital Signal performs powerful Numerical Algorithms to find out RMS of fundamental & harmonic contents of the current and voltage, the direction of power flow then this value is used for protection and metering function. All measurement is tuned to fundamental frequency i.e 50 or 60Hz depending upon setting, thus relay remain stable during distorted waveform by various industrial load. All these measure values are then used for different protection function such as IDMT/DMT Over current protection, Instantaneous Over current protection, Earth Fault protection, IDMT/DMT Directional Over Current and Earth Fault, Instantaneous Directional Over Current and Earth Fault protection etc. These measured values are also displayed on large 20 x 4 LCD display for metering purpose. The DSC also monitors different digital input through optical isolator and perform some monitoring function such trip circuit supervision, and control potential free contact for control CB and generate ALARM and Tele-signalling The power supply module is basically DC DC converted designed using modern PWM based Switching mode technique to convert 110Vdc station battery supply to the 12V and 24Vdc low voltage supply for relay electronics and control circuit. It also provides necessary isolation from station battery. There are two type of power supply modules are available 1) having range of 77Vdc 250Vdc. Covering requirement of 110Vdc and 220Vdc station battery system 2) having range of 18Vdc to 250Vdc covering 24Vdc, 30Vdc, 110Vdc and 220Vdc station battery requirement. The relay is having total 8 nos of high intensity dual LED for easy identification of type of fault Page 2 / 15
for easy user interface. LEDs L5, L6 & L7, digital status input and control output R1 to R6 are fully programmable via keypad interface Main Functions The ADR245B are having following protection functions. 1. 4 stage of Directional phase Over current element. (Ip1>, Ip2>, Ip>> and Ip>>>). 2. 3 stages of Directional 3Io (Internally derived EF) (3Io>, 3Io>> and 3Io>>>). 3. 3 stages of Directional Ie (Externally EF or REF) (Ie>, Ie>> and Ie>>>). 4. Negative phase sequence element. 5. Under / over voltage Protection. 6. Neutral Displacement voltage Protection. 7. Trip Circuit Super vision. 8. Breaker Failure Detection. 9. Monitoring Functions. 10. Auto Recloser Relay (ARR). 11. Relay / LED configuration Each of these functions are independently programmable and can be enable or disable by user depending upon requirement. Over Current Element: The ADR245B is member of Ashida Numerical Relay family design for protection general feeder. The relay has four independent stages of directional over current (Ip1>, Ip2>, IP>>, & IP>>>). Stage 1 (>) stage 2 (>>) can be programmed as IDMT or Definite Time. All major international IDMT curves are available. Stage 3 (>>>) can be programmed Instantaneous or Define Time. Range of for stage 1 and 2 is 10% to 250% for phase the output of stage 1 (Ip>) is separate and not connected to trip contact. The output of Ip1> and Ip2> can be assigned to any of 6 programmable relay through key board. While output of Ip>> and Ip>>> is connected to trip element. Thus Ip> can be used as ALARM before TRIP or can be used to TRIP another CB before tripping main CB. Although the curves tend towards infinite when the current approaches Is (general threshold), the minimum guaranteed value of the operating current for all the curves with the inverse time characteristic is 1.1Is (with a tolerance of ± 0.05Is). Earth Fault Element: The relay has two different type of Earth Fault one is marked as 3Io and another is marked as Ie. The 3Io is derived internally by software through phase current while Ie is measured from external CT. Thus Ie can be used as Core Balance CT (CBCT) or Restricted EF (REF). Each EF is having 3 stages (>, >>, & >>>). Stage 1 (>) stage 2 (>>) can be programmed as IDMT or Definite Time. All major international IDMT curves are available. Stage 3 (>>>) can be programmed instantaneous or Define Time. Range for stage 1 and stage 2 3Io is 10% to 100% and for stage 3 3Io is 50% - 1200%. The Range for EF is from 5% to 80% for stage 1, stage 2 and 50% to 1200% for stage 3. The output of stage 1 (Ie>) is separate and not connected to trip contact. The output of > can be assigned to any of 6 programmable relay through key board. While output of >> and >>> is connected to trip element. Thus Ie> can Page 3 / 15
be used as ALARM before TRIP or can be used to TRIP another CB before tripping main CB. As standard practice all direction relay use two healthy phase voltage for direction detection and use MTA setting for phase angle correction. For example R phase element use R phase current and Y, B phase voltage. In ADR245B use standard star connection at relay side and internally reconstruct phase to phase voltage required for direction detection. Similarly relay calculates open delta voltage (3Vo) and EF current (3Io) required for detection of EF element. Inverse Time Curves :- The each stage thresholds for phase (earth) over current can be selected with an Inverse Definite Minimum Time (IDMT) characteristic. The time delay is calculated with a mathematical formula Curve Type C1 C2 Description a b Standard Inverse_1 Standard Inverse_2 0.14 0.02 0.60 0.02 C3 Very Inverse 13.5 1 C4 C5 t = Extremely inverse Long Time Inverse K * a I b Iref 1 80 2 120 1 C6 Define Time - - The separate output contact allows to use each stage for independent function such as stage 1 can be used for ALARM stage 2 for tripping or both can be use for tripping independent CB. Each stage can enable or disable depend upon application. Trip Circuit Supervision:- The ADR245B is having 2 separate digital optocoupler status input which can be used to continuously monitor continuity of trip-circuit. The general scheme is as shown in fig. 4. Relay monitor Trip coil continuity through CB NO during close condition and through CB NC during Trip condition. If any discontinuity B+ B- TC TCCOM CB NO CB NC T1 T2 1 6 2 1 6 2 To Relay CPU To Relay CPU Fig.4 Trip Circuit Logic observed it generate Alarm signal. The output marked as PROTH (Protection healthy) is normally is ON and become OFF at following condition When DC supply is not sufficient (DC fail) When T1 and T2 both active or both inactive. i.e CB NO as will as CB NC are both close or open. Relay detects any internal hardware Error. Page 4 / 15
Auto Recloser Logic:- The ADR245B is provided with 4 shot Auto recloser function. There are 4 timer for auto recloser 1) Dead Time for shot 1 (DT1) 2) Dead Time for shot 2 (DT2) 3) Dead Time for shot 3 (DT3) 4) Dead Time for shot 4 (DT4) and 5) Reclaim Time (RT). After clearing of fault ADR245B trigger dead Time 1 i.e DT1. after the time delay Relay provide reclose command and start reclaim timer RT. If second fault occur during RT relay trigger Dead Time 2 i.e DT2. If third fault occur during RT relay trigger Dead Time 3 i.e DT3, If Fourth fault occur during RT relay trigger Dead Time 4 i.e DT4 and after time delay it again provide reclose command and retrigger RT. If fifth fault occur during RT Relay generate Lock-Out alarm and block further reclose. The Lock-Out condition can be reset locally as well remotely by SCADA through communication digital status input. Breaker Failure Detection :- Normally after tripping current should become Zero within 100 200ms time depend upon type of fault and breaker mechanism. After Fault ADR245B trigger internal timer (settable from 0.1s to 1.0s) if fault is not cleared during this time then relay declare as Breaker fail (LBB function) and change another contacts. These contacts is marked as Breaker Fail can be used to TRIP back up breaker or can be used to generate ALARM signal. Under / Over Voltage Alarm :- The ADR245B relay will be included programmable function to detect under / over voltage conditions. Relay had separate under voltage and over voltage element. The under voltage setting is from 45% to 95% and over voltage setting from 105% to 155% of rated (100% = 65.5V). Each function can be separately enable or disable independently. Whenever any phase voltage is above over voltage setting or below under voltage setting relay start internal timer (settable from 0.1 to 10 sec in steps of 0.1 sec). If voltage remain abnormal during is time relay generate Alarm signal. Any of the output element from RL1 to RL6 can be assign to this function. The output can be use for alarm or tripping of CB. Negative sequence over current (46): - The ADR245B relay will be included programmable function to detect unbalanced fault conditions. When earth fault elements are not operated or not sufficiently sensitive. The ADR245B include negative phase sequence over current element it can be programmed as IDMT or definite time the actual setting range will be finalized during later stage of design. Neutral Displacement Voltage Protection :- Neutral displacement voltage protection function is provided with internal & External selection. With internal setting it uses 3Vo voltage (Open Delta voltage) for sensing. In external setting it uses external PT Voltage (Terminals C27 & C28) for sensing. The setting is from 5.5V to 20V. Any output elements i.e. from RL1 to RL6 can be assign to this function. Page 5 / 15
Setting Group:- The relay is provided with two setting groups G1 and G2, one of the groups is active at time. The setting group can changed from digital input, this allow user to change relay setting dynamically as per outgoing load CB condition. Programmable DI/DO and LED:- The ADR245B has 6 digital outputs, 8 optoisolated input and 6 general purpose LEDs. These can be programmed by local key board. Any logical of physical status can be assigned to any relay contact The logic of digital status input as well as logical status can be formed and assigned to any of the relay output. The disturbance record can be trigger from external logical input. record can be trigger from physical status input as well as from pick, trip operation of relay. This waveform can be downloaded through communication port for further analysis Relay Talk Software: The general communication software is provided to communicate with relay, known as Relay Talk. By using this software data such as event log, disturbance records etc can be down loaded and can be further analysis. The disturbance record data can be saved in standard COMTRADE Format which is understandable by numbers of relay testing units for play back. Monitoring Functions (Event, Disturbance Record):- Apart from basic protection functions. Relay is continuously monitors all substations operation through status, it internal functions, internal hardware etc. if any changed is observed it marked as event. Such type of events is stored in internal non-volatile memory along with time stamped. Following some of the events. Relay PKP, Relay Reset, CB Trip, CB close, Changed of any digital status input, Relay setting changed etc. Up to 100 such event can be stored and can be download for detailed analysis. Apart from Event record Relay also record actual waveform of current and voltage along with all digital and logical status during fault condition. Up to 10 such waveforms can be recorded, the duration of disturbance record is 1 sec. The disturbance Page 6 / 15
Following as some of software clips All The data can view at time All The data can view at time Event list with real time Page 7 / 15
The waveform and logical and physical status latched by relay can be view and analysed Data can be viewed as raw sine wave or RMS value Page 8 / 15
While Ordering Specify the following Information for ADR245B Relay Definition of Model No of Aditya Series of Relays AM XXX XX X X XX X Reserved for Future Use PT Secondary 0 = NO PT 1 = 63.5 PT sec Auxiliary Supply 01 = 18 52 V dc 04 = 30 V dc 02 = 77 250 V dc 05 = 48 V dc 03 = 24 V dc 06 = 18 250 V dc CT Secondary 1 = 1 Amp. 2 = 5 Amp. 3 = 1 Amp. / 5 Amp. Selectable AM XXX XX X Over Current Earth Fault Relay For Adity-V2 series start from 201. For V1 series refer respective document 201 01 Obsolete Version CSE H 150 3 201 02 Relay with standard Back Connection CSE H 130 3 Ordering information: A D R 2 4 5 B - A M - X X X - X X - X - X - X X - X Example ADR245B AM-201-02-3-1-02-0 St. Back terminal layout Cabinet Type: CSE -150 H Terminal Removable Auxiliary Supply: 77-250Vdc CT sec: 1 Amp. / 5 Amp selectable PT sec : 63.5V P-N / 110VP-P Page 9 / 15
Technical Specifications: General specifications Sr. No. Specification Particulars I. Current Input : Suitable for CT secondary 5Amp. Or 1Amp site selectable II. Aux. Supply : 77-250VDC. Or 18 250VDC to be specified III. VA burden on CT : Less than 0.2VA IV. VA burden on Aux. : Less than 10 Watts V. VA burden on PT : Less than 0.2 VA VI. Operating Temp. range : -10 deg. To + 65 deg. VII. Continuous carrying capacity : 2 x of rated for CT and 1.5 x of rated for PT VIII. Pick up : Within 1.1 times of set value. IX. Reset Value : 95% to 90% of pick up. X. Output Contact : 2 for Trip : 1 for Reclose : 1 for Protection Healthy : 1 for Reclaim : 6 for General Programmable XI. Contact Rating : Continuous: 5A : Make & carry for 0.5 sec : 30A : Make carry for 3 sec : 15A XII. Opto Isolated input : 1 for CB NO & 1 for CB NC : 8 as general programmable XIII. Thermal Withstand for CT : 20 x of rated for 3.0 sec. General Setting XIV. Settings : Unit ID 1 250 in step of 1 : Baud Rate 1200-57600 : Com Port RS232 / RS485 : Set Parity None / Even / Odd : Group Selection G1 / G2 : BF Enable YES / NO : BF Delay 100 1000 msec in step of 50msec : CT Sec 1A / 5A : CT Primary 10 2000 in step of 1 : PT Primary 1KV 400KV in step of 1KV : Local Control YES / NO : Trip Ckt Test YES / NO : Trip Cont SR / HR : Trip Led SR / HR : Post Trigger 10% - 90% in step of 1% Page 10 / 15
Phase Section (Ip) XV. Phase (OC G1 ) External Earth Fault Section (Ie) XVI. EF G1 : IP1> Enable YES / NO : IP1> Settings 10% 250% in steps of 1%. : IP1> Time Multiplier (TMS) x0.02 x1.00 in steps of 0.01 : IP1> Curve (Operating Time) C1 C6 ( IDMT curve C1 C5 or Define Time C6 ) : IP1> C6 Delay 0 1899.9 Sec in steps of 0.1Sec. : IP2> Enable YES / NO : IP2> Settings 10% 250% insteps of 1% : IP2> Time Multiplier (TMS) x0.02 x1.00 in step of 0.01 : IP2> Curve (Operating Time) C1 C6 ( IDMT curve C1 C5 or Define Time C6 ) : IP2> C6 Delay 0 1899.9 Sec in steps of 0.1Sec. : IP>> Enable YES / NO : IP>> Settings 10% 250% insteps of 1% : IP>> Time Multiplier (TMS) x0.02 x1.00 in step of 0.01 : IP>> Curve (Operating Time) C1 C6 ( IDMT curve C1 C5 or Define Time C6 ) : IP>> C6 Delay 0 99.99 Sec in steps of 0.1Sec. : IP>>> Enable YES / NO : IP>>> Settings 50% 3000% insteps of 10% : IP>>> C6 Delay 0 90.00 Sec in steps of 0.01Sec. : MTA Settings 0 360 Lead in steps of 5 : IE> Enable YES / NO : IE> Settings 5% 80% insteps of 1% : IE> Time Multiplier (TMS) x0.02 x1.00 in step of 0.01. : IE> Curve C1 C6 (Operating Time) ( IDMT curve C1 C5 or Define Time C6 ) : IE> C6 Delay 0 99.9 Sec in steps of 0.1Sec. : IE>> Enable YES / NO : IE>> Settings 5% 80% insteps of 1% : IE>> Time Multiplier (TMS) x0.02 x1.00 in step of 0.01. : IE>> Curve C1 C6 (Operating Time) ( IDMT curve C1 C5 or Define Time C6 ) : IE>> C6 Delay 0 99.9 Sec in steps of 0.1Sec. : IE>>> Enable YES / NO : IE>>> Settings 50% 1200% insteps of 10% : IE>>> C6 Delay 0 3.00 Sec in steps of 0.01Sec. Page 11 / 15
Internally derived Earth Fault Section (3Io) XVII. 3Io G1 Negative Phase sequence Element (46)`Section XVIII. NPS G1 Additional Data : 3Io> Enable YES / NO : 3Io> Settings 10% 100% insteps of 1% : 3Io> Time Multiplier (TMS) x0.02 x1.00 in step of 0.01. : 3Io> Curve (Operating Time) C1 C6 ( IDMT curve C1 C5 or Define Time C6 ) : 3Io> C6 Delay 0 99.9 Sec in steps of 0.1Sec. : 3Io>> Enable YES / NO : 3Io>> Settings 10% 100% insteps of 1% : 3Io>> Time Multiplier (TMS) x0.02 x1.00 in step of 0.01. : 3Io>> Curve (Operating Time) C1 C6 ( IDMT curve C1 C5 or Define Time C6 ) : 3Io>> C6 Delay 0 99.9 Sec in steps of 0.1Sec. : 3Io>>> Enable YES / NO : 3Io>>> Settings 50% 1200% insteps of 10% : 3Io>>> C6 Delay 0 3.00 Sec in steps of 0.01Sec. : MTA Settings 0 360 Lag in steps of 5 : I2>> Enable YES / NO : I2>> Settings 10% 100% insteps of 1% : I2>> Time Multiplier (TMS) x0.02 x1.00 in step of 0.01. : I2>> Curve C1 C6 (Operating Time) ( IDMT curve C1 C5 or Define Time C6 ) : I2>> C6 Delay 0 99.9 Sec in steps of 0.1Sec. : I2>>> Enable YES / NO : I2>>> Settings 50% 1500% insteps of 10% : I2>>> C6 Delay 0 3.00 Sec in steps of 0.01Sec. : C1 Std. Inverse. 1 (3.0S) : C2 Std. Inverse 2 (1.3S) : C3 Very Inverse : C4 Extremely inverse : C5 Long Time Inverse : C6 Define Time (00 99 Sec In steps of 1.0s.) Under / Over voltage Section (V< / V>) XIX. Under Voltage (V<) Over Voltage (V>) : V< OFF / ON : Setting 45% - 95% insteps of 1% : Operating Time 0.1 to 10.0 sec : V> OFF / ON : Setting 105% - 155% insteps of 1% : Operating Time 0.1 to 10.0 sec Page 12 / 15
Neutral Displacement Voltage Protection (NDV) XX. Neutral Displacement Voltage Auto Recloser Section XXI. Auto Recloser Operational Indicators (Flags) XXII. PROT.H /ERR XXIII. PICK-UP / FAULT DT / REC LOCK / BF L5 / L6 / L7 CLOSE / TRIP Drawing References : NDV Enable Yes/No : NDV Ext/Int Int/Ext : Setting 5.5 to 20V : Timing 0 to 10 sec. : Numbers of shot 0 4 / 0 = bypass : Dead Time 1, 2, 3, 4 0.1S 180s : Relaim Time 200 300s : Green LED indicates Relay OK (Protection Healthy) : Red LED indicates Fault in following conditions. 1. Problem in relay Hardware. 2. Trip Circuit Faulty : Green LED indicates Start of Timer. Self Reset (SR) Type : Red LED indicates FAULT. Hand Reset (HR) Type. : Green LED indicates Dead Time : Red LED indicate Reclaim Time : Green LED indicates ARR lock-out (HR) Type : Red LED indicates Breaker Fail (HR) Type : Spare LEDs Programmable : Green LED indicates Output CLOSE relay contact closer (SR) Type : Red LED indicates Output TRIP relay contact closer (SR) Type : For Back Connections - ADV02601 : For Cabinet Type - MAC01301 : For Typical External connection - ADV02501 : For Typical External connection - ADV02502 The Relay Confirm to following standard Sr. No. Title Standard no. Electromagnetic Compatibility Type Test: 1. High Frequency Test : IEC 60255-22-1, class III : Frequency : 1MHz Damped Oscillatory : Longitudinal :5 KV (peak) : Duration: sec duration 2 sec. : Between input current Terminal 2. Electrostatic Discharge Direct Application : IEC 60255-22-2 Class III and IEC 61000-4-2 class III. : Contact discharge: 6kV, : Air discharge: 8KV : Polarity: both +ve and Ve polarities. Page 13 / 15
3. Indirect Application : IEC-61000-4-2, Class-III 4. Fast Transient Disturbance 5. Surge Immunity Test 6. Power Frequency Immunity Test 7. Power Frequency Magnetic Field Test : IEC 60255-22-4 and IEC 61000-4-4, class A : 1.2KV; 5/50ns; 5KHz burst duration = 15ms. : Repetition rate 300ms; Both polarities; Ri = 50Ω; duration 1 min. : IEC 60255-22-5 / IEC 61000-4-6 class 4 : Differential Mode = 2kV : Common Mode = 4kV : 1.2/50uS, 5 surges of each polarity : IEC-60255-22-7, Class-A : IEC-61000-4-8, Class-V 8. Radiated Electromagnetic Field Disturbance 9. Conducted Disturbance Induced By Radio Frequency Field 10. AC Ripple In DC Supply Test 11. Radiated Emission : IEC- 60255-25 : IEC- 60255-22-3 : EN-61000-4-3 : Frequency 80MHz 1GHz : IEC 60255-22-6 / IEC 61000-4-6: 1996. : Freq. 150kHz 80MHz, Amplitude 10 V, Modulation 80% AM @ 1 KHz : IEC 60255-11 Insulation Tests: 12. High Voltage Test : IEC 60255-5. class III : At 2.5kV 50Hz between all terminal connected together and earth for 1 minutes 13. Impulse Voltage Test : IEC60255-5. class III : Test voltage: 5KV (peak) 1.2 / 50us, : Energy :0.5 J, : Polarity : + ve and Ve : Nos. of impulses : 3 positive and 3 negative impulse : Duration between Impulses : 5 sec. Environmental tests: 14. Cold test Storage test : IEC-60068-2-1 15. Dry heat test : IEC-60068-2-2 16. Damp heat test, steady state : IEC-60068-2-3 17. Damp heat test, cyclic : IEC-60068-2-30 CE compliance 18. Immunity : IEC-60255-26 19. Emissive Test : IEC- 60255-26 20. Low voltage directive : EN-50178 Page 14 / 15
Mechanical tests 21. Vibration : IEC 60255-21-1 class 1 : Frequency Range = 10Hz 150Hz, acceleration. = 1gn (9.8 m/s2) : Sweep rate 1 octave/min; 20 cycle in 3 orthogonal axis. 22. Bump Test : IEC 60255-21-2 Class-1 : 1000 bumps of 10gn peak acceleration and 16ms pulse duration in each of the two opposite direction per axis as per IEC60255-21-2 class 1 No. of axes. 3. 23. Shock Withstand : IEC 60255-21-2 Clas-1 : 3 shocks of 15gn peak acceleration and 11ms pulse in each of two opposite direction. No. of axis : 3 24. Seismic Test : IEC 60255-21-3 : In single axis sine sweep in X-axis sweep (@a sweep rate of 1 octave/minute) vibration in the frequency range (5-40 Hz) at amplitude of 3.5mm or 1.0gn (whichever is less) : In single axis sine sweep in Y-axis - sweep (@a sweep rate of 1 octave/minute) vibration in the frequency range (5-40 Hz) at amplitude of 1.5mm or 0.5gn (whichever is less) Revision Date Description 01 15.10.2009 Original specifications Page 15 / 15