Phoenix Contact PSRmodular - Figure 5-112: GUARD-LOCKING Example in Operating Mode Without Position Monitoring of the Safety Door

Items and operators of the PSRmodular Software
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Operating mode without
position monitoring of the
safety door
Figure 5-112 GUARD-LOCKING example in operating mode without position monitoring
of the safety door
The “Lock_fbk” input must be connected to the “LOCK FEEDBACK” function block (see
section “LOCK FEEDBACK”), which detects the status of the guard locking pin.
The “U
NLOCK_CMD” input can be connected as desired in the circuit diagram and controls
the guard locking device (when at logic “1”).
The “O
UT” signal is at logic “1” when the safety door is closed and the guard locking device
is in the locked position. If an enable command is applied to the “U
NLOCK_CMD” input, the
“O
UT” signal is set to logic “0” and the guard locking device is enabled with the “LOCKOUT”
signal. The “O
UT” signal can also assume the value logic “0” if error conditions are present
(e.g., feedback time is above the maximum permissible time, etc.).
As soon as the “UNLOCK_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 “L
OCK_FBK” feedback signal can be param-
eterized.
Feedback time ≥ Activation time of the electromagnets
Application example for
operating mode without
position 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. Output “O
UT 1” enables the actuators.
In this case, the user must select the “Gate not present” parameter.