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 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 2 Wire connection: also 2 x 1,5 mm stranded ferruled (isolated), DIN 46 228-1/-2/-3/-4 or 2 2 x 2,5 mm stranded ferruled DIN 46 228-1/-2/-3/-4 Width 22,5 mm Function diagram Approvals and marking push button ON * ET Canada / USA * see variants emergency-stop Applications Protection of people and machines K1 Emergency stop circuits on machines Monitoring of safety gates Control unit for lightbars K2 Indicators M6665 upper LED: on when supply connected lower LEDs: on when relay K1 and K2 energized Block diagram Notes Line fault detection on On-button: A1(+)A2(-) S11 S12 S22 S33 S34 13 23 33 41 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. Overvoltage and Monitoring logic A line fault across the On-button which occurred after activation of the short circuit prot. K1 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 K2 K1 24V this module is also suitable for switching small loads of K2 Power K2 K1 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 M6666 S21 14 24 34 42 voltage and is used to connect the E-stop loop when cross fault monitoring is selected. Circuit diagrams A1 A1 A1 13 23 33 13 23 33 13 23 + + + S33 S34 41 42 S33 S34 43 44 S33 S34 A1+ S11 13 23 33 41 A1+ S11 13 23 33 43 A1+ S11 13 23 S12 S12 S12 S22 K1 S22 K1 S22 K1 S33 S33 S33 S34 K2 S34 K2 S34 K2 A2 S21 14 24 34 42 A2 S21 14 24 34 44 A2 S21 14 24 S11 S12 S21 S22 S11 S12 S21 S22 S11 S12 S21 S22 M8553 M8552 M8573 A2 14 24 34 A2 14 24 34 A2 14 24 LG5925.02 LG5925.48 LG5925.04 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 1 0243372Unit programming M8576 Disconnect unit before setting of S1 Drawing shows setting at the state of delivery Notes Technical data Connecting the terminal S21 to the protective ground bridges the internal Thermal current I : max. 5 A per contact th short-circuit protection of Line A2 (-). The short-circuit protection of line see current limit curve A1 (+) remains active. Switching capacity To alter the functions automatic start - manual start and with or without to AC 15: 3 A / AC 230 V IEC/EN 60 947-5-1 cross fault monitoring, the switches S1 and S2 are used. These are for NO contacts located behind the front cover (see unit programming). 2 A / AC 230 V IEC/EN 60 947-5-1 The setting with or without cross fault monitoring on E-stop buttons is for NC contact Electrical contact life IEC/EN 60 947-5-1 made with S1. S2 is used to change between automatic an manual 5 restart. On automatic start also the terminals S33 - S34 have to be linked. to 5 A, AC 230 V cos = 1: > 1,5 x 10 switching cycles For connection please see application examples. Permissible operating frequency: max. 1 200 operating cycles / h ATTENTION - AUTOMATIC START Short circuit strength max. fuse rating: 6 A gL IEC/EN 60 947-5-1 According to IEC/EN 60 204-1 part 9.2.5.4.2 and 10.8.3 line circuit breaker: C 8 A it is not allowed to restart automatically after emergency 6 stop. Therefore the machine control has to disable the Mechanical life: > 20 x 10 switching cycles automatic start after emergency stop. General data Technical data Operating mode: Continuous operation Input circuit Temperature range: - 15 ... + 55 C Clearance and creepage Nominal Voltage U : DC 24 V, AC 230 V N distances other voltages on request Overvoltage category / Voltage range contamination level: 4 kV / 2 IEC 60 664-1 DC EMC at 10% residual ripple: 0,9 ... 1,1 U N Electrostatic discharge: 8 kV (air) IEC/EN 61 000-4-2 AC: 0,85 ... 1,1 U N HF irradiation: 10 V / m IEC/EN 61 000-4-3 Nominal consumption: DC approx. 1,3 W Fast transients: 2 kV IEC/EN 61 000-4-4 Min. Off-time: 250 ms Surge voltages Control voltage on S11: DC 22 V at U N between Control current over wires for power supply: 1 kV IEC/EN 61 000-4-5 S12, S22: 25 mA at U N between wire and ground: 2 kV IEC/EN 61 000-4-5 Min. voltage on S12, S22: DC 20 V when relay activated Interference suppression: Limit value class B EN 55 011 Short-circuit protection: Internal PTC Degree of protection: Housing: IP 40 IEC/EN 60 529 Overvoltage protection: Internal VDR Terminals: IP 20 IEC/EN 60 529 Housing: Thermoplastic with V0 behaviour Output according to UL subject 94 Vibration resistance: Amplitude 0,35 mm IEC/EN 60 068-2-6 Contacts frequency 10 ... 55 Hz LG 5925.02: 2 NO contacts Climate resistance: 15 / 055 / 04 IEC/EN 60 068-1 LG 5925.04: 4 NO contact Terminal designation: EN 50 005 LG 5925.48: 3 NO, 1 NC contact 2 Wire connection: 1 x 4 mm solid or The NO contacts are safety contacts. 2 1 x 2,5 mm stranded ferruled (isolated) ATTENTION The NC contacts 41-42 or can only be used for monitoring. 2 2 x 1,5 mm stranded ferruled (isolated) Operate delay typ. at U : N DIN 46 228-1/-2/-3/-4 or Manual start: 40 ms 2 2 x 2,5 mm solid automatic start: 300 ms DIN 46 228-1/-2/-3/-4 Release delay typ. at U : N Wire fixing: Plus-minus terminal screws M 3,5 Disconnecting the supply: 25 ms box terminals with self-lifting Disconnecting S12, S22: 20 ms clamping piece Contact type: Relay positive guided Mounting: DIN rail IEC/EN 60 715 Nominal output voltage: AC 250 V Weight: 220 g (DC unit) DC: see limit curve for arc-free operation Dimensions Switching of low loads: 100 mV (contact 5 Au) 1 mA Width x height x depth: 22,5 x 90 x 121 mm 2