Troubleshooting; Gl Board Features - Chamberlain LiftMaster HS670 Owner's Manual

GL BOARD FEATURES

DIAGNOSTICS (LEDS AND CODES)
There are three diagnostic LEDs. Two red LEDs (OL, CL) are
indicators for the open and close limits. The LEDs are illuminated
when the limit switch contacts are closed.
The third amber LED (DIA) is used to blink out diagnostic codes.
The number is the count of the number of times the LED is on in
an 8 second period. The LED is on for approximately 1/2 second
and repeats every second until the number is reached. There will
be a pause following each pulse cycle (1-6 pulses) to differentiate
between the different diagnostic codes.
LED Code Diagnostic Meaning
Flashed
OFF Normal operation
1 Single entrapment sensed
2 Double entrapment
3 Failed or no RPM sensor (Hall effect)
4 Exceed maximum motor run time
5 Limit fault
6 Loss of communications between master and second during run mode
On No Flash Motor not learned
*Hard inputs include open override, close override and stop inputs.
RELAY DRIVE TROUBLESHOOTING LEDS
There are 5 troubleshooting LEDs on relay drives K1 through K5. These
LEDs will be illuminated when the microcontroller relay drive is activated.
LED
D6
D5
D4
D3
D2
TROUBLESHOOTING LEDS
There are 9 troubleshooting LEDs.
LED
D11
D13
D15
D17
D19
D21
D24
D29
D31
T R O U B L E S H O O T I N G
LED NAME
Contactor A
Contactor B
SAM
Lock
Alarm
LED NAME
Radio
Shadow
Hard Close
Stop
Soft Open
Hard Open
Interrupt Loop
Obstruction Open
Obstruction Close
DESCRIPTION
On when Contactor A is activated
On when Contactor B is activated
On when SAM relay is activated
On when Mag Lock relay is activated
On when Alarm Relay is activated
DESCRIPTION
On when Radio switch is activated
On when Shadow Loop is activated
On when Close switch is activated
On when Stop switch is not activated
On when Open switch is activated
On when Open switch is activated
On when Interrupt/Safety Loop activated
On when Edge is activated or when Photo Eye
Beam is broken
On when Edge is activated or when Photo Eye
Beam is broken
24
Force Control
Max
Min
Cleared By
N/A
Control Input
Hard Input*
Removal of problem
Hard Input*
Control Input
Removal of problem
Completion of Motor Learn Routine