Service manual

4801-5159 Rev 01-2015 Technical Installation and Service Manual Page 15
9 Troubleshooting Flowchart
Looking at the SC-325 or SC-650,
What is shown on Display?
Unknown Position indication.
See Section 10
Press “Open” button to reset
the Actual Position
See Section 11
Check Egress Strap to ensure that the strap is in the correct
Limit Mark
p
osition and not
p
ulled out of
p
osition
Set Switch and Jumper.
Restart Flowchart.
Three Dashes
(---)
Alternates between Three Dashes and a
Numerical
(
178
)
Actual Position
Check incoming voltage at
L1-L2 to Motor Drive Board.
If voltage present, replace Drive Board.
If no voltage, check incoming power supply.
When trying to Jog Door,
what is the status of ST
LED? See Section 13.
Error Code
Yes
Yes
Is
the Power
LED on the Motor
Drive Board
steady
Green?
Will
the door run
in Jog Mode?
Yes
A
Numerical
Actual Position
(718)
No
No
Yes
No
Has
the SWX2
Selection Switch
and Drive Selection
Jumper been set to
match incoming
voltage?
Go To
Page 16
Reset Egress Strap.