D41G
15
Operating Principle
Operating Principle
Magnet control
In the power-to-unlock version of the D41G, the safety door switch is
unlocked when the Solenoid Control signal (= 24 V) is set.
In the power-to-lock
version of the D41G, the safety door switch is locked when the
Solenoid Control signal (= 24 V) is set.
If the risk analysis indicates the use of a monitored interlock then a
variant (D41G-
@
Y) with the monitored interlock is to be used, labelled
with the
symbol.
The actuator monitoring variant (D41G-
@
Z) is a safety door switch
with an interlock function for process protection.
Mode of operation of the safety outputs
In the D41G-
@
Y, the unlocking of the safety door switch causes the
safety outputs to be disabled. The unlocked guard door can be
relocked as long as the actuator is inserted in the D41G safety door
switch; in that case, the safety outputs are re-enabled. The guard door
must not be opened.
In the D41G-
@
Z, the opening of the guard door causes the safety
outputs to be disabled.
Diagnostic Functions
Diagnostic LEDs
The safety door switch indicates the operating condition and faults by
means of three-color LEDs located in the front surface of the safety
door switch.
Green (Power): Supply voltage on
Yellow (Status): Operating condition
Red (Fault): Error (refer to Table 2)
Safety door switch with auxiliary output
The auxiliary output OUT can be used for central visualization of
operating states or control functions, e.g. in a PLC.
The auxiliary output is not a safety-related output.
Behavior of the diagnostic output
(Example: power-to-unlock version)
Input signal magnet control
Normal sequence, door was locked
Door could not be locked or fault
Key
Table 2: Error messages / flash codes red diagnostic LED
IN
OUT
OUT
Guard door open
Guard door closed
Unlock guard door
Locking time: 150 ... 250 ms,
Guard door locked
typically 200 ms 250 ms,
typically 200 ms
Guard door not locked or fault
AZM 200
IN
OUT
I 1.0
O1.0
O1.0
I 1.0
O1.0
I 1.0
M1.0
M1.0
M2.0
M2.0
&
&
O1.0
I 1.0
&
O1.0
I 1.0
&
Door can be locked
Door can be locked
Power-to-unlock: IN = 0 = locking
Door is locked
Door is locked
Power-to-lock: IN = 1 = locking
D41G
PLC
Flash codes
(Red)
Designation
Autonomous
switch-off after
Error cause
1 flash pulse
Error (warning) at output Y1
30 min
Fault in output test or voltage at output Y1
2 flash pulses
Error (warning) at output Y2
30 min
Fault in output test or voltage at output Y2
3 flash pulses
Error (warning) cross-wire short
30 min
Cross-wire short between the output cables or fault at both
outputs
4 flash pulses
Error (warning) temperature too high
30 min
The temperature measurement reveals an internal temperature
that is too high
5 flash pulses
Actuator fault
0 min
Incorrect or defective actuator
6 flash pulses
Error actuator combination
0 min
An invalid combination of actuators was detected
(blocking bolt detection or tamper attempt).
Continuous red
Internal fault /
overvoltage or undervoltage fault
0 min
Device defective / supply voltage not within specifications
Summary of Contents for D41G
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