ERRORS SECTION
IMPORTANT: IF ANY OF THE FOLLOWING ACTIONS CORRECT THE ERROR YOU ARE EXPE-
RIENCING GO BACK THE THE BEGINNING OF THE SECTION WHICH LEAD YOU TO THIS
SECTION AND REPEAT THOSE STEPS BEFORE CONTINUING ON WITH THE GUIDE.
X-1. CPC-3 Primary LED Errors
NOTE: If none of the following listed correction measures result in a change to the proper reading, consult a Tjernlund Products technician at 800-255-4208 or
[email protected].
X-1A. VFD Status OK LED Unlit
Check to see if a fault code appears in the red LED display on the VFD. If something other
than 0.0 appears, a fault code is being displayed
Fault Code Appears
Refer to the Fault Code Table and identify cause for that code appearing.
No Fault Code Appears
Verify that the following wiring scenarios are true and correct them if necessary:
The ten position terminal block is plugged into the appropriate harness on the VFD.
Press firmly to verify
The wire from the CPC-3 terminal block at the MB position is connected to the VFD
terminal block at the MB position.
The wire from the CPC-3 terminal block at the MC position is connected to the VFD
terminal block at the MC position.
The wire from the VFD terminal block at the MB position is connected to the VFD at
the MB position.
The wire from the VFD terminal block at the MC position is connected to the VFD at
the MC position
X-1B. Limit Status OK LED Unlit
Verify that leads are connected to positions S1 and S2 on the VFD terminal block.
If leads are NOT connected to S1 and S2
, consult the Tjernlund wiring diagram
and wire accordingly. Check the Limit Status OK LED after properly wiring the
CPC-3.
If leads are connected to S1 and S2
, disconnect leads and install a jumper-wire between S1 and S2.
If the Limit Status OK LED is NOW LIT
, verify the continuity of the safety circuit. Refer to the
Tjernlund wiring diagram.
If the Limit Status OK LED is STILL UNLIT
, jumper-wire within the CPC-3 positions M1 and M2.
If Limit Status OK LED is NOW LIT
, verify the wiring between the CPC-3 and the VFD.
Refer to the provided wiring diagrams.
X-1C. Analog LED and/or Digital LED
Disconnect all wires, except the power supply, from the CPC-3.
If “Analog” and/or “Digital” LED is NOW LIT, verify the wiring. Refer to the provided wiring diagrams.
10
VFD T
erminal
Block
Terminal Block