Reference Sheets for GRAFIK Eye Dimming Panel
Possible Cause/Solutions
GRX-4000 Series Control Units are not addressed.
Terminals 3 and 4 miswired.
DIM HOT and SW HOT wires crossed.
Low End set too low.
This is probably normal. Solid-state controls dissipate about 2% of
the connected load as heat. Make sure panel has adequate venting.
Areas above and below the panel allow air |to flow behind the panel to
cool it.
One of the units has wires 3 and 4 crossed or open.
Wire terminal 3 to terminal 3, 4 to 4.
Symptom
Wallstations will not go into Set Up Mode
Fluorescent Load Flickers
Panel is Warm
Two Control Units have the same Address (usually A1)
39
Troubleshooting Guide
Troubleshooting Guide
(continued)
After checking LED diagnostics, use this chart:
Note:
The following voltages should be present on the GRX wiring:
Terminals 2 to 1
≈
22VDC
Terminals 3 to 4
≈
3VDC
Terminals 5 to 1 if Switch 6 set for Normal
≈
22VDC
Other Troubleshooting tools:
The Circuit Selector can be used to view the intensity information being sent to the
dimmer. Use buttons 1 and 2 on the Circuit Selector to access the circuit Number
desired. Press button 5 repeatedly until the
Circuit Level
LED lights. Value
displayed is now the present intensity sent from either Link A or Link B (as
indicated) that is controlling that circuit.Value = 0 is OFF, Value = 100 is ON full.
The Circuit Selector can also be used to manually change the intensity of the desired
circuit. Press and hold buttons 1 and 5 until the
SELECT VALUE
LED lights. Use
buttons 1 and 2 to access the circuit desired. Press button 5 repeatedly until the
Circuit Level
LED lights. Buttons 3 and 4 will now control the desired circuit.
Value = 0 is OFF, Value = 100 is ON full, Value = CF is Circuit Finder - load will
blink for easy location.
Reference Sheet
S
ELECT
V
ALUE
V
IEW
V
ALUE
S
ELECT
V
ALUE
D
ISPLAYED
Load Type
(See Instructions)
Circuit Level
5
4
3
Zone Assignment w/
Circuit Schedule
Zone Assignment w/ Zone Capture
TM
Link A
Link B
S
ELECT
C
IRCUIT
2
1
Circuit
Common
24V
MUX
MUX
Drain
Sense
1 2 3 4
D
5
VALUE
A B
Comm
Drain
MUX
MUX
C
D
Link
Link
