Magnetic Autocontrol MHTM MicroDrive Access Series, Operating Instructions Manual

Page: 108 / 144

Barrier MHTM
TM
MicroDrive Access and Parking
Malfunctions
108 5815,5013US / Version 05
Malfunction:
Barrier does not open.
Possible cause Corrective action Removal by
Power supply is not connected

Switch on power supply.

Check power supply.
Electrical specialist
Error present. The corresponding
error message is displayed.
Depending on error message, check
components, wiring, etc.
MHTM MicroDrive
service specialist
Power supply is present. Control unit
display does not light up.
Control unit defective. Replace the
control unit. Contact service.
MHTM MicroDrive
service specialist
Closing signal is active. Remove closing signal Electrical specialist
Too high trigger sensitivity set for the
loop.
Check the response sensitivity of the
loop and adjust if necessary.
MHTM MicroDrive
service specialist
Malfunction: Barrier does not open completely.
Possible cause Corrective action Removal by
Spring tension in the balancing
springs of the lever system set too
weakly for the barrier arm weight.
Adjust balancing springs.
→ See page 75, chapter 8.14.
MHTM MicroDrive
service specialist
Malfunction: Barrier does not close. The message "Waiting for
release" appears on the display.
Possible cause Corrective action Removal by
The message appears after the
power supply is switched on, after
voltage returns and after reset.
The release signal can be given by
an external closing signal or by
pushing the left operating button at
the control unit. → See separate
document "Description of control
units MGC and MGC Pro for MHTM
TM
MicroDrive barriers", chapter "Start-
up settings".
Operator
Malfunction: Barrier does not close. The message "Waiting for
passage" appears on the display.
Possible cause Corrective action Removal by
The message appears after the
power supply is switched on, after
voltage returns and after reset.

The barrier closes once a vehicle
passes. → See separate
document "Description of control
units MGC and MGC Pro for
MHTM
TM
MicroDrive barriers",
chapter "Start-up settings".

Confirm message with the left
button at the control unit.
Operator