GFA TS 981 - Pass Door; Slack Rope Switch Input X2

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SAFETY DEVICES
Pass door / slack rope switch input X2
The pass door switch Entrysense features a protective function complying with safety
category 2 under EN 954-1. The electrical contact is monitored by the control panel that
outputs fault F1.7 when it malfunctions.
The electronic pass door switch Entrysense: Function and test
The pass door switch Entrysense is tted with two reed contacts that are switched by a
permanent magnet. The control panel evaluates the switching states and the contact
resistance independently of each other.
At the lower limit position F1.2 is displayed when an OPEN command is given and at the
same time the pass door / slack rope switch circuit is open. The door can be moved only after
the pass door has closed or when the pass door / slack rope switch circuit signals OK. If the
circuit will be opened when the door is moving the door is stopped immediately.
F1.7 is displayed when an OPEN command is given after the door controller has detected
beforehand asymmetrical pass door switch positions (see below for reasons). This fault can
be reset when the door is reopened. This ensures that contact misalignments caused by
vibrations from the moving door do not trigger door shutdown.
Possible reasons for fault F1 .7
Decription
Reopen and close the door.
Measure the control voltage at the terminals 24 V-GND.
After troubleshooting reopen and close the door.
With the pass door closed: Measure resistance and
if necessary replace the contact resistances in the
pass door / slack rope switch circuit.
Check that the shutter pass door switch is
installed correctly.
After troubleshooting reopen and close the door.
Measures to solve the problem
Door was not fully closed for longer
than 2 s so that only one reed contact
was switched during this time.
The control voltage was less than 21.6 V
for longer than 2 s (by 10 %).
Contact resistances too high in the pass
door / slack rope switch circuit
Electronic pass door switch is not
installed correctly:
• Distance between switch and magnet
too large
• Switch and magnet not attached at
the same height
• Switch installed at wrong position