Magnetic Autocontrol MHTM MicroDrive Access Series, Operating Instructions Manual

Page: 90 / 144

Barrier MHTM
TM
MicroDrive Access and Parking
Electrical connection
90 5815,5013US / Version 05
9.4.2 Plausibility check of the safety devices
NOTE!
The plausibility check is deactivated by default in
barriers in Deadman operation at a closing speed
of
≥ 2.2 seconds.
The plausibility check prevents that the barrier can be operated
without safety device or with defective safety device.
When the power supply is switched on, it is verified that at least
one safety device was passed by a vehicle or person within three
barrier openings. In operation, the number is increased to ten
barrier openings.
If the plausibility check fails, the barrier is decommissioned for
reasons of safety. The message "Safety device missing" appears
on the display.
NOTE!
The input function "Additional safety device" must
only be used for additional monitoring devices. The
input function is not considered in the plausibility
check. A safety loop always has to be connected to
the detector module or a testable safety light
barrier at the clamps X11 and X20.
Procedure at failed plausibility
check
1. Remove cause for failed plausibility check.
2. Reset the barrier.
→ See page 118, chapter 12.4.