Safety Technique. SAFEMASTER Emergency Stop Module With Time Delay LG 5928

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1 Safety Technique SAFEMASTER Stop Module With Time Delay LG Functi Diagram Your advantage Compact, flexible and safe Short respse time Ideal for designs according to the new safety standards Features According to - Performance Level (PL) e and category 4 to E ISO SIL Claimed Level (SIL CL) 3 to IEC/E Safety Integrity Level (SIL) 3 to IEC/E and IEC/E Output 2 O instantaneous ctacts and 1 release delay ctact 1- or 2-channel cnecti Line fault detecti at the O pushbutts at cnecti terminals S33-S34 Manual restart with butt S33-S34 or automatic restart with bridge between S-S34 With or without cross fault mitoring in the E- loop Indicati for released time circuit LED indicati for supply, channel 1/2 and release delayed ctacts Wire cnecti also 2 x 1.5 mm 2 stranded ferruled (isolated), DI /-2/-3/-4 or 2 x 2.5 mm 2 stranded ferruled DI /-2/-3 As opti with pluggable terminal blocks for easy exchange of devices - with screw terminals - or with cage clamp terminals Width 22.5 mm Approval and Marking * ) * ) see variants Canada / USA АЕ68 A Applicati Protecti of people and machines circuits machines, Stop category 1 can be realised Mitoring of safety gates Block Diagram A1 S S32 S12 S33 S Indicati upper LED lower LEDs when supply cnected, when relay and resp. t and t energized overvoltage and short circuit protecti overvoltage logic timer release delay Circuit Diagram A S33 S34 S S32 M9972_a 24V etz S t t t S12 S S32 S33 S34 t A S S12 S21 A M9840_b LG All technical data in this list relate to the state at the moment of editi. We reserve the right for technical improvements and changes at any time en / 418

2 Cnecti Terminals Terminal designati Signal designati A1 + / L A2 - /, S21, S, S33 Inputs S12,, S32, S34 Outputs,, 23, 24 Positive driven O ctacts for release circuit 37, 38 Positive guided o ctacts for release delay circuit otes To select automatic restart terminals S - S34 must be bridged, S33 - S34 must be opened. Open terminals S - S34 select manual restart, the Onbutt must then be cnected to S33 - S34. Line fault detecti On-butt The line fault detecti is ly active when the time delayed relais t and t have released and then S12 (channel A) and S32 (channel B) are switched simultaneously. If the On-butt is closed before S12, S32 is cnected to voltage (also when line fault across On-butt), the output ctacts will not close. The unit will not restart before the time delay is finished. A line fault across the On-butt which occurred after activati of the relay, will be detected with the next activati and the output ctacts will not close. If a line fault occurs after the voltage has been cnected to S12, S32, the unit will be activated because this line fault is similar to the normal On-functi. The unit can be operated with single channel and 2-channel operati with cross fault mitoring. For cnecti please refer to applicati examples. The terminal S21 permits the operati of the device in IT-systems with insulati mitoring, serves as a reference point for testing the ctrol voltage and is used to cnect the E- loop when cross fault mitoring is selected. Cnecting the terminal S21 to the protective ground bridges the internal short-circuit protecti of Line. The short-circuit protecti of line A1 remains active. ATTETIO - AUTOMATIC START! According to IEC/E part it is not allowed to restart automatically after emergency. Therefore the machine ctrol has to disable the automatic start after emergency. Technical Data Input ominal voltage U Voltage range ominal csumpti Min. Off-time Ctrol voltage Ctrol current via S12, S32 Min. voltage to terminals S12, S32 Short-circuit protecti Overvoltage protecti Output DC 24 V U approx. 3.5 W 1 s DC 23 V at U device not activated each 40 ma at U DC 19 V device not activated Internal PTC Internal VDR Ctacs 2 O ctacts instantaneous, and 1 ctact release delay Operating time typ. at U manual start 25 ms automatic start at U 100 ms Release delay typ. at U in case of break of supply voltage 20 ms in case of break of S12, and S32 10 ms Technical Data Time delay tv (release delayed) Repeat accuracy Ctact type ominal output voltage Auxilary supply must be cnected for time delay Time ranges s s s s s s s Other ranges or values request ± 1 % of setting value forcibly guided AC 250 V DC see limit curve for arc-free operati Max switching current DC see limit curve for arc-free operati Thermal current I th in 1 ctact path / or 23 / 24 max. 8 A (see quadratic total current limit curve) 37 / 38 max. 6 A (see quadratic total current limit curve) Switching capacity to AC 15 O ctact 3 A / AC 230V IEC/E to DC O ctacts 2 A / DC 24 V Electrical life to AC 15 at 2 A, AC 230 V 10 5 switching cycles IEC/E Permissible operating frequency max. 360 switching cycles / h with short release delay time Short circuit strength max. fuse rating / or 23 / A gl IEC/E / 38 4 A gl IEC/E Line circuit breaker Mechanical life General Data B 6 A (max. short circuit current A) 10 x 10 6 switching cycles Operating mode Ctinuous operati Temperature range C Clearance and creepage distances rated impuls voltage / polluti degree 4 kv / 2 IEC EMC Electrostatic discharge 8 kv (air) IEC/E HF irradiati 10 V / m IEC/E Fast transients 2 kv IEC/E Surge voltages between wires for power supply 1 kv IEC/E between wire and ground 2 kv IEC/E HF-wire guided 10 V IEC/E Interference suppressi Limit value class B E Degree of protecti Housing IP 40 IEC/E Terminals IP 20 IEC/E Housing Thermoplastic with V0 behaviour according to UL subject 94 Vibrati resistance Amplitude 0.35 mm, frequency Hz IEC/E Climate resistance 15 / 055 / 04 IEC/E Terminal designati E Wire cnecti DI /-2/-3/-4 screw terminal (fixed) Insulati of wires or sleeve length Terminal blocks with screw terminals Max. cross secti Insulati of wires or sleeve length 1 x 4 mm 2 solid or 1 x 2.5 mm 2 stranded ferruled (isolated) or 2 x 1.5 mm 2 stranded ferruled (isolated or 2 x 2.5 mm 2 solid 8 mm 1 x 2.5 mm 2 solid or 1 x 2.5 mm 2 stranded ferruled (isolated) 8 mm en / 418

3 Technical Data Terminal blocks with cage clamp terminals Max. cross secti Min. cross secti 0.5 mm 2 Insulati of wires or sleeve length mm Wire fixing 1 x 4 mm 2 solid or 1 x 2.5 mm 2 stranded ferruled (isolated) Plus-minus terminal screws M3.5 box terminals with wire protecti Insulati of wires or sleeve length 8 mm Mounting DI rail IEC/E Weight approx. 210 g Dimensis Width x height x depth LG 5928 LG 5928PC LG 5928PS 22.5 x 90 x 121 mm 22.5 x 111 x 121 mm 22.5 x 104 x 121 mm Safety Related Data (ly instantaneous ctacts) Values according to E ISO Category 4 PL e MTTF d a 99.0 % d op 365 d/a (days/year) h op 24 h/d (hours/day) t Zyklus 3600 s/zyklus = 1 /h (hour) Values according to IEC/E / IEC/E / IEC/E SIL CL 3 IEC/E SIL 3 IEC/E / IEC/E HFT % SFF 99.7 % PFH D 1.37E-10 h -1 PFD 1,18E-05 T 1 20 a (year) Safety Related Data (ly delayed ctacts) UL-Data The safety functis were not evaluated by UL. Listing is accomplished according to requirements of Standard UL 508, general use applicatis ominal voltage U Ambient temperature Standard Type DC 24 V C Switching capacity Ambient temperature 45 C Ctact / and 23/24 Pilot duty R300 6A 250Vac Resistive 6A 24Vdc Resistive or G.P. Ctact 37/38 8A 250Vac Resistive 8A 24Vdc Resistive or G.P. Ambient temperature 55 C Ctact / and 23/24 Pilot duty R300 5A 250Vac Resistive 5A 24Vdc Resistive or G.P. Ctact 37/38 7A 250Vac Resistive 7A 24Vdc Resistive or G.P. Wire cnecti Screw terminals fixed Plug in screw Plug in cage clamp nfo 60 C / 75 C copper cductors ly AWG Sol/Str Torque 0.8 m AWG 20 - Sol Torque 0.8 m AWG Str Torque 0.8 m AWG Sol/Str Technical data that is not stated in the UL-Data, can be found in the technical data secti. LG /61 DC 24 V s Article number Output 2 O ctacts instantaneous and 1 O ctacts release delayed ominal voltage U DC 24 V Time delay tv s Width 22.5 mm Values according to E ISO Category 3 PL d MTTF d a 97.3 % d op 365 d/a (days/year) h op 24 h/d (hours/day) t Zyklus 3600 s/zyklus = 1 /h (hour) Values according to IEC/E / IEC/E / IEC/E SIL CL 2 IEC/E SIL 2 IEC/E / IEC/E HFT % SFF 99.1 % PFH D 2.76E-10 h -1 PFD 2.34E-05 T 1 20 a (year) *) HFT = Hardware-Failure Tolerance nfo The values stated above are valid for the standard type. Safety data for other variants are available request. The safety relevant data of the complete system has to be determined by the manufacturer of the system en / 418

4 Variants LG /61 LG /001/61 LG /100/61 LG /101/61 with redundant time circuits to discnect and t, adjustable time. Each time circuit operats e output relay as LG /61, but with fixed time delay Fixed times 1 s, 3 s, 5 s, 10 s, 300 s other values request as LG /61, but deactivati of the first time relay deactivates the secd time relay i. e. both relays switch off simultaneously as LG /100/61, but with fix time delay Fixed times 1 s, 3 s, 5 s, 10 s, 300 s other times request otes Removing the terminal blocks with cage clamp terminals 1 The unit has to be discnected. 2. Insert a screwdriver in the side recess of the frt plate. 3. Turn the screwdriver to the right and left. 4. Please note that the terminal blocks have to be mounted the belging plug in terminatis. Ordering example for variants LG / _ /61 DC 24 V s Fixed times s 0,3. 3 s s s s ominal voltage U UL-approval Variant, if required Type of terminals Without indicati terminal blocks fixed with screw terminals PC (plug in cage clamp) pluggable terminal blocks with cage clamp terminals PS (plug in screw) pluggable terminal blocks with screw terminals Ctacts Type Optis with Pluggable Terminal Blocks Switching voltage U [ V ] Characteristics ,2 0,4 0,7 1 Switching current I [A] safe switch-off,no standing arc max.1 switching cycle/s Limit curve for arc-free operatio I 2 (A 2 ) M2643_a 2 164A max Screw terminal (PS/plugin screw) M43_a Cage clamp terminal (PC/plugin cage clamp) M43_a 0 T( C) M9971 device mounted distance with air circulati. max. current at 55 C over ctactrows = 2x(7A) + (5A) =123A device mounted without distance heated by devices with same load, max current at 55 C over ctactrows =3x (3A) = 27A I=I+I+I I,I,I current in ctactrows Quadratic total current limit curve en / 418

5 Applicati Examples off A1 S33 S34 S12 S32 S33 S34 S12 S21 23 S21 S32 24 M9976_b M9975_c Single channel emergency circuit. This circuit does not have any redundancy in the emergency- ctrol circuit. Suited up to SIL2, Performance Level d, Cat. 3 Ctact reinforcement by external ctactors, 2-channel ctrolled. The output ctacts can be reinforced by external ctactors with forcibly guided ctacts for switching currents > 8 A e.g. 6 A. Functiing of the external ctactors is mitored by looping the C ctacts into the closing circuit (terminals S-S34 or S33-S34). Suited up to SIL3, Performance Level e, Cat. 4 S1 sliding protecti grid closed S2 A1 S33 S34 S12 S21 A1 S33 S34 S12 S32 S32 S21 M9974_a acitve O-ctact (ctact positi closed) M9977_b 2-channel emergency circuit with cross fault mitoring. Suited up to SIL3, Performance Level e, Cat. 4 2-channel safety gate mitoring. Suited up to SIL3, Performance Level e, Cat. 4 A1 S33 S34 S12 S32 S21 M9973_c S auto-start S34 Ctact reinforcement by external ctactors ctrolled by e ctact path. S33 - S34 must stay open auto start. Suited up to SIL3, Performance Level e, Cat 4, if the external ctactors are in the same cabinet and the wiring is short circuit and crossfault prove en / 418

6 E. DOLD & SÖHE KG D-781 Furtwangen PO Box 1251 Telephe (+49) / Telefax (+49) / dold-relays@dold.com internet http// en / 418

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