Barrier MHTM
TM
MicroDrive
Malfunctions
5815,5001US / Version 02.66
161
Malfunction
Possible cause
Corrective action
To be carried
out by
Barrier does not
open completely.
Spring tension in the balancing
springs of the lever system set
too weakly for the barrier arm
weight.
Adjust balancing springs.
See page 82, chapter 8.13.
MHTM
MicroDrive
service
specialist
Opening signal is active for too
long.
Shorten opening signal to max.
1 second.
Electrical
specialist
Barrier does not
close
immediately after
through traffic,
but only after the
hold-open time.
Safety loop does not respond.
Check the response sensitivity of
the safety loop. Adjust setting if
necessary.
MHTM
MicroDrive
service
specialist
Opening command is active.
Cancel the opening command.
Electrical
specialist
Induction loop reports
engaged, although no vehicles
are present.
Check and if necessary adjust
loop frequencies.
Measure loops.
Insulation resistance:
> 1 Mohm
contact resistance:
0.8 to 2.5 ohm
Replace loop if the measured
values differ from the specified
values.
MHTM
MicroDrive
service
specialist
Wire bridge between terminals
X11 IN and OUT missing.
If no safety light barrier is
connected, a wire bridge must be
installed between the clamps
X11 OUT and IN.
See
MHTM
MicroDrive
service
specialist
Barrier with Swing Away and
automatic return: Wait for
delay.
Operator
Barrier with Swing Away and
manual return: Put barrier arm
in the original position
manually.
Operator
Barrier does not
close.
Message "Boom contact
active": At the "Boom contact"
input, boom ejection was
detected.
Barrier without Swing Away:
Replace the barrier arm
MHTM
MicroDrive
service
specialist
Barrier does not
close. The
message
"Waiting for
release" appears
on the display.
The message appears after
the voltage 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
Operator
Содержание MHTM MicroDrive
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