Phoenix Contact PSRmodular - Figure 5-116: GUARD-LOCKING Example in Operating Mode with Position Monitoring of the Safety Door

PSRmodular system
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PHOENIX CONTACT 109241_en_03
The “OUT” signal can also assume the value logic “0” if error conditions are present (e.g.,
door open when interlock is blocked, feedback time is above the maximum permissible
time, etc.).
As soon as the “U
NLOCK_CMD” enable signal is present, the “LOCKOUT” signal is controlled
after the parameterized “U
NLOCK” time has elapsed.
Taking the “Feedback Time” parameter into consideration, the discrepancy time between
the control of the guard locking device and the “LOCK_FBK” feedback signal can be param-
eterized.
Feedback time ≥ Activation time of the electromagnets
Application example for
operating mode with posi-
tion monitoring of the
safety door
In this example, the user enables the guard locking device with the “SWITCH” function block
created by a button. The “L
OCKOUT” signal controls the output for controlling the guard lock-
ing magnets. The feedback signal from the guard locking pin is acquired using the “LOCK
FEEDBACK” function block. The “O
UT” output enables the actuators. The status of the door
is monitored by the “G
ATE” input via the “GUARD-MONITORING (2CH)” input function
block.
The guard locking device used in the example remains in the locked position if the electro-
magnet is not energized, which is why the “Interlock Spring” option must be selected.
Figure 5-116 “GUARD-LOCKING” example in operating mode with position monitoring of
the safety door
In the example illustration, observe the circuit diagram (left) and the parameters (right) of
the “GUARD-LOCKING” operator. The feedback of the electromagnet consists of two
contacts: a N/C contact and a N/O contact. If the electromagnet is energized, both con-
tacts change status. In contrast, the position monitoring of the safety door consists of two
N/C contacts.