Safety technique Emergency Stop module BD 5935 safemaster According to EU Directive for machines 98/37/EG According to IEC/EN 60204-1 Safety category 4 according to EN 954-1 Output: optionally 1 NO / 1 NC or 3 NO / 1 NC contacts Gold plated contacts to switch low loads (signal to PLC) 1- or 2-channel connection Line fault detection on ON pushbutton Operating state display LED display for channels 1 and 2 Removable terminal strips Overvoltage and short circuit protection 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 Optionally automatic ON function when the operating voltage is applied or activation via the ON pushbutton Function diagram Optionally cross fault detection in emergency-stop With fast auto start as option Width 45 mm Pushbutton On Approvals and marking Emergency- stop (Off) * * K2 Deutschland Canada / USA * see variants Applications * Short-circuit detection K3 at the On pushbutton Protection of persons and machines M 6742 - Emergency-stop circuits on machines - Monitoring of safety gates Block diagram Indication A1(+)A2(-) S11 S12 S22 S33 S34 13 23 33 41 upper LED: on when supply voltage connected lower LEDs: on when relay K2 and K3 active Notes overvoltage monitoring and short circuit logic K2 Line fault detection at the ON pushbutton: protection If the ON pushbutton was already closed before the voltage was applied at S12, S22 (also in the case of line fault via the ON pushbutton), the output contacts cannot be switched on. K2 K3 24V A line fault at the ON pushbutton which occured after activation of the unit K3 is recognized when switching on takes place again and switching-on of power K2 K3 the output contacts is prevented. If a line fault occurs at the ON pushbutton after the voltage has already been applied at S12 and S22, unwanted activation occures because this line fault can not be distinguished from the regular switching-on function. The PE testing terminal allows the units to be also operated in IT networks with insulation monitoring. It also M7023 a S21/PE(-) 14 24 34 42 serves as a reference point for checking the control voltage and as a connection contact in the event of an emergency-stop with cross fault detection. Circuit diagrams A1 A1 A1 S11 S12 S22 13 21 S11 S12 S22 13 23 33 41 T11 T12 T22 13 23 33 41 (+) (+) (+) A1 S22 13 21 A1 S22 13 23 33 41 A1 T22 13 23 33 41 S11 S11 T11 S12 K2 S12 K2 T12 K2 S33 S33 T33 S34 K3 S34 K3 T34 K3 A2 S21/PE 14 22 A2 S21/PE 14 24 34 42 A2 T21/PE 14 24 34 42 S21 A2 S21 A2 T21 A2 S33 S34 14 22 S33 S34 14 24 34 42 T33 T34 14 24 34 42 (-) (-) /PE /PE (-) /PE M7792 b M7372 b M7373 c BD 5935.48 BD 5935.48/200 BD 5935.16 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. BD 5935 / 08.05.06 e 1 0221548Unit programming M7483 plate Notes Technical data Because of the gold-plated contacts the BD 5935 can be used to switch Operate time small loads 1 mVA ... 7 VA, 1 mW ... 7 W in the range of 0,1 ... 60 V, 1 ... activation via ON pushbutton:50 ms - 25 % + 50 % 300 mA. The gold-plated contacts allow also to switch the maximum automatic ON function: 1 s - 25 % + 50 %, as option also current but the gold plating will be burnt off. After that the contacts cannot with shorter on-delay (see variants) be used any more to switch the small loads. Release time opening in secondary circuit One or more extension modules BN 3081 or external contactors with (S12-S22): 25 ms - 25 % + 50 % opening in supply circuit: 50 ms - 25 % + 50 % positively driven contacts can be used to multiply the number of contacts of the emergency-stop module BD 5935. Contact type: relay, positively-driven The switches S1 and S2 are provided for the following selection Rated output voltage: AC 250 V DC: see arc limit curve possibilities: Automatic-start, manual-start and emergency-stop with or without cross fault detection. These switches are located behind the front Thermal current I : see quadratic total current limit curve th (max. 10 A in one contact path) cover panel (see unit programming diagrams). Switch S2 is for selecting automatic or manual Start. In addition, terminals Switching capacity S33 and S34 must be jumpered forautomatic start functio. to AC 15 for NO contact: AC 5 A / 250 V IEC/EN 60 947-5-1 Selection of the operating mode with or without cross fault detection at the emergency-stop pushbutton is performed via the switch S1. The unit for NC contact: AC 2 A / 250 V IEC/EN 60 947-5-1 Electrical life must be connected as shown in the application example. 5 to AC 15 at 2 A, AC 230 V: 10 switching cycles IEC/EN 60 947-5-1 ATTENTION - AUTOMATIC START Permissible operating frequency: 600 switching cycles / h According to IEC/EN 60 204-1 part 9.2.5.4.2 it is not Short circuit strength allowed to restart automatically after emergency stop. max. fuse rating: 6 A gL IEC/EN 60 947-5-1 Therefore the machine control has to disable the max. line circuit breaker: C 10 A automatic start after emergency stop. 6 Mechanical life: 10 x 10 switching cycles Technical data General data Input Operating mode: Continuous operation Nominal voltage U : AC 24, 48, 110, 127, 230, 240 V N Temperature range: - 15 ... + 55 C DC 24 V at max. 90% humidity Voltage range: AC 0,85 ... 1,1 U N Clearance and creepage at 10% residual ripple: DC 0,9 ... 1,2 U distances N at 48% residual ripple: DC 0,8 ... 1,1 U overvoltage category / N Nominal consumption: AC approx. 4 VA, DC approx. 2 W contamination level: 4 kV / 2 IEC 60 664-1 Nominal frequency: 50 / 60 Hz EMC Recovery time: 0,5 s after activating the emergency- Electrostatic discharge: 8 kV (air) IEC/EN 61 000-4-2 stop button. Fast transients: 2 kV IEC/EN 61 000-4-4 If the line fault detection of the ON- Surge voltages button is be active, the device must between stay off for approx. 5 sec. wires for power supply: 1 kV IEC/EN 61 000-4-5 Control voltage at S11: DC 24 V between wire and ground: 2 kV IEC/EN 61 000-4-5 Control current via S12, S22: approx. 35 mA 25 % at U Degree of protection: Housing: IP 40* IEC/EN 60 529 N Minimum voltage at Terminals: IP 20 IEC/EN 60 529 terminal S12, S22: DC 21 V when unit is activated * when front plate is removed to set switches, protection class IP 40 Output is not valid Housing: Thermoplastic with V0 behaviour Contacts according to UL subject 94 BD 5935.16: 1 NO / 1 NC contacts Vibration resistance: Amplitude 0,35 mm IEC/EN 60 068-2-6 BD 5935.48: 3 NO / 1 NC contacts frequency 10 ... 55 Hz The NO contacts are safety contacts. Climate resistance: 15 / 055 / 04 IEC/EN 60 068-1 ATTENTION The NC contacts 21-22 Terminal designation: EN 50 005 or 41-42 can only be used for monitoring. 2 M5960