LG 5925.48 AC 50/60HZ 230V

**Safety technique** 

**Emergency Stop Module LG 5925 safemaster** 

According to EU directive for machines 98/37/EG According to IEC/EN 60 204-1, VDE 0113 part 1 (1998-11) Safety category 4 according to EN 954-1 

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Output: max. 3 NO contacts, see contacts Single and 2-channel operation 

Line fault detection on On-button 

Manual restart or automatic restart when connecting the supply voltage, switch S2 

With or without cross fault monitoring in the E-stop loop, switch S1 LED indicator for state of operation 

LED indicator for channel 1 and 2 

Removable terminal strips 

**Function diagram** 

Wire connection: also 2 x 1,5 mm[2] stranded ferruled (isolated), DIN 46 228-1/-2/-3/-4 or 2 x 2,5 mm[2] stranded ferruled DIN 46 228-1/-2/-3/-4 Width 22,5 mm 

## **Approvals and marking** 

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push button ON<br>emergency-stop<br>K1<br>K2<br>=<br>M6665<br>Block diagram<br>A1(+)A2(-) S11 S12 S22 S33 S34 13 23 33 41<br>Overvoltage and<br>short circuit prot. Monitoring logic K1<br>24V K2 K1<br>K2<br>Power K2 K1<br>M6666 S21 14 24 34 42<br>**----- End of picture text -----**<br>


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*<br>ET Canada / USA * see variants<br>**----- End of picture text -----**<br>


## **Applications** 

Protection of people and machines Emergency stop circuits on machines Monitoring of safety gates Control unit for lightbars 

## **Indicators** 

upper LED: on when supply connected lower LEDs: on when relay K1 and K2 energized 

## **Notes** 

Line fault detection on On-button: 

The line fault detection is only active when S12 and S22 are switched simultaneously. If The On-button is closed before S12, S22 is connected to voltage (also when line fault across On-Button), the output contacts will not close. 

A line fault across the On-button which occurred after activation of the relay, will be detected with the next activation and the output contacts will not close. If a line fault occurs after the voltage has been connected to S12, S22, the unit will be activated because this line fault is similar to the normal On-function. The gold plated contacts of the BG 5925 mean that this module is also suitable for switching small loads of 1 mVA - 7 VA, 1 mW - 7 W in the range 0,1 - 60 V, 1 - 300 mA. The contacts also permit the maximum switching current. However since the gold plating will be burnt off at this current level, the device is no longer suitable for switching small loads after this. 

The terminal S21 permits the operation of the device in IT-systems with insulation monitoring, serves as a reference point for testing the control voltage and is used to connect the E-stop loop when cross fault monitoring is selected. 

## **Circuit diagrams** 

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A1 13 23 33 A1 13 23 33 A1 13 23<br>+ + +<br>S33 S34 41 42 S33 S34 43 44 S33 S34<br>A1+ S11 13 23 33 41 A1+ S11 13 23 33 43 A1+ S11 13 23<br>S12 S12 S12<br>S22 K1 S22 K1 S22 K1<br>S33 S33 S33<br>S34 K2 S34 K2 S34 K2<br>A2 S21 14 24 34 42 A2 S21 14 24 34 44 A2 S21 14 24<br>S11 S12 S21 S22 S11 S12 S21 S22 S11 S12 S21 S22<br>M8553 M8552 M8573<br>A2 14 24 34 A2 14 24 34 A2 14 24<br>moe pe moe pe moe pe<br>LG5925.48 LG5925.04 LG5925.02<br>**----- End of picture text -----**<br>


All technical data in this list relate to the state at the moment of edition. We reserve the right for technical improvements and changes at any time. 

LG 5925 / 28.05.03 d 

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**Unit programming** 

## M8576 

Disconnect unit before setting of S1 Drawing shows setting at the state of delivery 

## **Notes** 

Connecting the terminal S21 to the protective ground bridges the internal short-circuit protection of Line A2 (-). The short-circuit protection of line A1 (+) remains active. 

To alter the functions automatic start - manual start and with or without cross fault monitoring, the switches S1 and S2 are used. These are located behind the front cover (see unit programming). 

The setting with or without cross fault monitoring on E-stop buttons is made with S1. S2 is used to change between automatic an manual restart. On automatic start also the terminals S33 - S34 have to be linked. For connection please see application examples. 

## **ATTENTION - AUTOMATIC START!** 

According to IEC/EN 60 204-1 part 9.2.5.4.2 and 10.8.3 it is not allowed to restart automatically after emergency stop. Therefore the machine control has to disable the automatic start after emergency stop. 

## **Technical data** 

## **Input circuit** 

DC 24 V, AC 230 V other voltages on request 

**Nominal Voltage UN:** 

## **Voltage range** 

DC 

at 10% residual ripple: 0,9 ... 1,1 UN AC: 0,85 ... 1,1 UN **Nominal consumption:** DC approx. 1,3 W **Min. Off-time:** 250 ms **Control voltage on S11:** DC 22 V at UN **Control current over S12, S22:** 25 mA at UN **Min. voltage on S12, S22:** DC 20 V when relay activated **Short-circuit protection:** Internal PTC **Overvoltage protection:** Internal VDR 

## **Output** 

## **Contacts** 

LG 5925.02: 2 NO contacts LG 5925.04: 4 NO contact LG 5925.48: 3 NO, 1 NC contact 

The NO contacts are safety contacts. **ATTENTION! The NC contacts 41-42 can only be used for monitoring.** 

**Operate delay typ. at UN:** Manual start: 40 ms automatic start: 300 ms 

**Release delay typ. at UN:** Disconnecting the supply: 25 ms Disconnecting S12, S22: 20 ms **Contact type:** Relay positive guided **Nominal output voltage:** AC 250 V 

DC: see limit curve for arc-free operation 100 mV 

**Switching of low loads:** (contact 5  Au) 

1 mA 

## **Technical data** 

|**Thermal current Ith:**||max. 5 A per contact|
|---|---|---|
|||see current limit curve|
|**Switching capacity**|||
|to AC 15:||3 A / AC 230 V<br>IEC/EN 60 947-5-1|
|||for NO contacts|
|||2 A / AC 230 V<br>IEC/EN 60 947-5-1|
|||for NC contact|
|**Electrical contact life**||IEC/EN 60 947-5-1|
|to 5 A, AC 230 V cos  = 1:|to 5 A, AC 230 V cos  = 1:<br>9|> 1,5 x 105switching cycles|
|**Permissible operating**|||
|**frequency:**||max. 1 200 operating cycles / h|
|**Short circuit strength**|||
|max. fuse rating:||6 A gL<br>IEC/EN 60 947-5-1|
|line circuit breaker:||C 8 A|
|**Mechanical life:**||> 20 x 106switching cycles|
|**General data**|||
|**Operating mode:**<br>**Temperature range:**||Continuous operation<br>- 15 ... + 55 C|
|**Clearance and creepage**<br>**distances**|||
|Overvoltage category /<br>contamination level:|Overvoltage category /|4 kV / 2<br>IEC 60 664-1|
|**EMC**|||
|Electrostatic discharge:<br>HF irradiation:||8 kV (air)<br>IEC/EN 61 000-4-2<br>10 V / m<br>IEC/EN 61 000-4-3|
|Fast transients:||2 kV<br>IEC/EN 61 000-4-4|
|Surge voltages<br>between|||
|wires for power supply:<br>between wire and ground:<br>Interference suppression:<br>**Degree of protection:**||1 kV<br>IEC/EN 61 000-4-5<br>2 kV<br>IEC/EN 61 000-4-5<br>Limit value class B<br>EN 55 011<br>Housing:<br>IP 40<br>IEC/EN 60 529<br>Terminals: IP 20<br>IEC/EN 60 529|
|**Housing:**||Thermoplastic with V0 behaviour<br>according to UL subject 94|
|**Vibration resistance:**<br>**Climate resistance:**||Amplitude 0,35 mm IEC/EN 60 068-2-6<br>frequency 10 ... 55 Hz<br>15 / 055 / 04<br>IEC/EN 60 068-1|
|**Terminal designation:**<br>**Wire connection:**||EN 50 005<br>1 x 4 mm2solid or|
|||1 x 2,5 mm2stranded ferruled (isolated)<br>or|
|||2 x 1,5 mm2stranded ferruled (isolated)<br>DIN 46 228-1/-2/-3/-4 or|
|||2 x 2,5 mm2solid|
|||DIN 46 228-1/-2/-3/-4|
|**Wire fixing:**<br>**Mounting:**<br>**Weight:**||Plus-minus terminal screws M 3,5<br>box terminals with self-lifting<br>clamping piece<br>DIN rail<br>IEC/EN 60 715<br>220 g (DC unit)|
|**Dimensions**|||



**Width x height x depth:** 22,5 x 90 x 121 mm 

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## **Standard type** 

LG 5925.03  DC 24 V Article number: 0056025 � Output: 3 NO contacts, 1 NC contact � Nominal voltage UN: DC 24 V � Width: 22,5 mm 

## **Ordering example** 

LG 5925 ._ _ DC 24 V 

Nominal voltage Contacts Type 

## **Characteristics** 

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250<br>200<br>150<br>100<br>50<br>0<br>1 2 3 4 5 6 7 8<br>Switching current I[A]<br>safe breaking, no continuous arcing<br>under the curve, max. 1 switching cycle/s<br>M 7073_a<br>V]<br>Switching voltage U [<br>**----- End of picture text -----**<br>


Arc limit curve under resistive load 

## **Application examples** 

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L1<br>off<br>E-stop<br>A1(+) S11 S33 S34 S12 S22 13 .. ..<br>LG5925<br>A2(-) S21 14 .. ..<br>N<br>M6667<br>**----- End of picture text -----**<br>


Single channel emergency stop circuit. This circuit does not have any redundancy in the emergency-stop control circuit. **Note: Refer to "Unit programming"!** Switches in pos.: S1 no cross fault detection S2 manual start 

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L1<br>on E-stop<br>A1(+) S11 S33 S34 S12 S22 13 .. ..<br>LG5925<br>A2(-) S21 14 .. ..<br>N<br>M6668<br>**----- End of picture text -----**<br>


2-channel emergency stop circuit without cross fault monitoring. **Note: Refer to "Unit programming"!** Switches in pos.: S1 no cross fault detection S2 manual start 

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L1<br>K4 E-stop<br>K5<br>A1(+) S11 S33 S34 S12 S22 13 .. ..<br>LG5925<br>A2(-) S21 14 .. ..<br>K4 K5<br>N<br>M6669<br>**----- End of picture text -----**<br>


Contact reinforcement by external contactors controlled by one contact path. 

**Note: Refer to "Unit programming"!** Switches in pos.: S1 no cross fault detection S2 manual start 

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## **Application examples** 

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L1<br>on K4 E-stop<br>K5<br>A1(+) S11 S33 S34 S12 S22 13 23 ..<br>LG5925<br>A2(-) S21 14 24 ..<br>K4 K5<br>N<br>M6670<br>**----- End of picture text -----**<br>


Contact reinforcement by external contactors, 2-channel controlled. The output contacts can be reinforced by external contactors with positive guided contacts for switching currents > 8 A. Functioning of the external contactors is monitored by looping the NC contacts into the closing circuit (terminals S33-S34). 

## **Note: Refer to "Unit programming"!** 

Switches in pos.: S1 no cross fault detection S2 manual start 

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L1<br>E-stop<br>on<br>A1(+) S11 S33 S34 S12 S22 S21 13 .. ..<br>LG5925<br>A2(-) 14 .. ..<br>N<br>M6671<br>**----- End of picture text -----**<br>


2-channel emergency stop circuit with cross fault detection **Note: Refer to "Unit programming"!** Switches in pos.: S1 cross fault detection S2 manual start 

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L1<br>sliding guard closed<br>S1<br>on<br>S2<br>A1(+) S11 S33 S34 S12 S22 13 .. ..<br>LG5925<br>A2(-) S21 14 .. ..<br>N<br>M6672<br>Activated No contact<br>(contact position: closed)<br>**----- End of picture text -----**<br>


2-channel safety gate monitoring. 

**Note: Refer to "Unit programming"!** Switches in pos.: S1 no cross fault detection S2 manual start 

**E. DOLD & SÖHNE KG • D-78114 Furtwangen** 

• Postf. 1251 • Tel. +49 7723 654 0 • Telefax +49 7723 654 356 

e-mail dold-relays@t-online.de • internet http://www.dold.com 

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