3Tk2845-.Gb41/2/4 "Magnetic Force Interlocked Tumbler - Siemens 3TK2845 Manual

5.7 3TK2845-.GB41/2/4 "Magnetic Force Interlocked
Tumbler"
Brief description:
Monitoring an EMERGENCY-STOP control switch and protective door monitoring
with tumbler (magnetic force, locked when switched on) according to Category 4,
EN 954-1.
Properties:
Stop category 0/1 according to EN 60204-1;
Two electronic enabling circuits;
Two floating enabling circuits;
One electronic signaling output;
U 24 V DC
s
Function:
Locked:
When the EMERGENCY-STOP control switch is activated, outputs 14, 24 (M1)
switch off. The outputs are switched back on again when the EMERGENCY-
STOP control switch releases, the protective door locks, the feedback circuit at
Y64 is closed and the START button Y34 is activated.
Enabled:
When the protective door enable Y82 is activated, outputs 14, 24 (M1) switch off
and outputs 38, 48 (solenoid control) are switched off with a time delay and the
protective door is released. When the protective door enable is activated once
again, outputs 38, 48 are switched on and the protective door is locked. Outputs
14, 24 (M1) can be switched back on again when the EMERGENCY-STOP con-
trol switch releases, the protective door locks, the feedback circuit at Y64 is
closed and the START button Y34 is activated. If the protective door is not ope-
ned when released, the device starts automatically after the door locks.
When the EMERGENCY-STOP control switch is activated and the protective
door enable is activated after the delay time set on the device has passed,
outputs 38, 48 are switched off immediately.
Notice
Sensor cables should be routed in a protected manner; only safety sensors with
positively-opening contacts may be used as sensors.
5-14
3TK2845 Multifunction Device Manual
GWA 4NEB 926 2087-22 DS 01