Lutron Electronics Grafik Eye GRX-4000 Series - Control Unit Reference Sheets; Save Options Reference

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Troubleshooting Guide
Troubleshooting Guide (cont.)
After checking LED diagnostics, use this chart:
Symptom
Accessory Control will not go into Set Up Mode
Two Control Units have the same Address (usually A1)
Possible Cause/Solutions
• GRX-4000 Series Control Units are not addressed.
• Terminals 3 and 4 miswired.
• One of the units has wires 3 and 4 crossed or open. Wire terminal 3 to
terminal 3, 4 to 4.
Reference Sheet
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 switch. Use buttons 1
and 2 on the Circuit Selector to access the circuit
number desired. Press button 5 repeatedly until
Circuit Level lights. Value displayed is now the
present intensity sent from the GRX-4000 Control Unit
controlling that circuit. Value = 0 is OFF, Value = 100
is ON full.
The Circuit Selector can also be used to manually
turn the switch mechanism ON or OFF. Press and
hold buttons 1 and 5 until lights. Use
buttons 1 and 2 to access the circuit desired. Press
button 5 repeatedly until Circuit Level 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 cycle ON and OFF.
Note that while in the , Circuit Level
mode, the display will not time out in 20 minutes.
SELECT VALUE
SELECT VALUE
SELECT VALUE DISPLAYED
Load Type
Circuit
Control and Zone Assigned
Using circuit schedule
Value
3
4
5
1 Inc/Mag LV
2 Fluorescent
3 Neon/CC
SELECT VALUE
VIEW VALUE
4 Non-dim
5 Elec. LV
– Unassigned
SELECT CIRCUIT
Link Status
Using Zone Capture
Low End Trim (optional)
High End Trim (optional)
Circuit Level
TM
®
Power OK (Pins 1,2)
Data OK (Pins 3,4)
2
1
1 2 3 4 5
Reference Sheets for GRAFIK Eye Switching Panel