X2: Input, safety edge system
The door control automatically detects three different safety edge systems.
Important!
Connect safety edge systems in accordance with EN 12978
The hold-to-run mode can always be used should the safety edge system be
defective
1K2 resistor evaluation
This safety device is intended for a pneumatic switch with an NC contact connected in series
with an end of line resistor of 1K2, +/-5 %, and 0.25 W. If activated, pressure is generated in
the rubber profile which activates the pneumatic switch.
The safety edge system must be tested in the CLOSE final limit position. The "pre-limit safety
edge system" door position test is used for conducting the test. Should the door move past
the pre-limit position when it closes, two seconds will start to lapse. Within this time frame
pressure must be generated by the safety edge system from it contacting the ground. If the
pneumatic switch is not activated, the test has failed (is negative) and the "F2.8" fault
indication is displayed.
If there is a short circuit in the safety edge system, fault "F2.7" is displayed.
Upon activation of the safety edge system or permanent disconnection of the current circuit,
the "F2.6" fault indication appears.
8K2 resistor evaluation
This safety device is intended for an electrical safety edge system with an end of line resistor
of 8k2, +/- 5 % and 0.25 W. If activated, there is a short circuit and fault "F2.4" is displayed. If
there is an open circuit, the "F2.5" fault indication appears.
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