Rockwell Automation 8720MC 8720MC Regenerative Power Supply User Manual User Manual
Page 111
The following procedure shows how to access and clear the error
log. Note that you cannot clear a single entry from the error log.
The entire log will be cleared simultaneously using this procedure.
Step 1.
Press the PRG key.
When the operation panel becomes
program mode, the User parameter
will be displayed and the
"PROGRAM" status LED will turn
ON.
Step 2.
Press the
key until the "Err" is displayed.
8-5
Error Codes and Warning Buzzer
Error
Code
P.U3
PU.3
PU3.
FA3
LE3
PS3
Error
Description
Power Module
Phase L
1
Error
Power Module
Phase L
2
Error
Power Module
Phase L
3
Error
Fan Error
Line Connect Error
Power Supply
Board Error
Error Cause
The Phase L
1
Power Module of the
slave unit 2 is faulty.
The Phase L
2
Power Module of the
slave unit 2 is faulty.
The Phase L
3
Power Module of the
slave unit 2 is faulty.
The cooling fan(s) of the slave unit 2
and/or the AC reactor is (are)
defective.
The AC reactor is overheated
(1)
.
The phases (L
1
, L
2
and L
3
) of the AC
input power of the slave unit 2 do not
match with those of the control power.
The Power Interface Board (PIFS) of
the slave unit 2 is faulty.
Corrective Action
Check the wiring of the AC input power.
Check the ambient temperature, the cooling fan, and the clearances
around the unit.
If the error occurs intermittently, contact the Allen-Bradley Company
or replace the unit.
Check the wiring of the AC input power.
Check the ambient temperature, the cooling fan, and the clearances
around the unit.
If the error occurs intermittently, contact the Allen-Bradley Company
or replace the unit.
Check the wiring of the AC input power.
Check the ambient temperature, the cooling fan, and the clearances
around the unit.
If the error occurs intermittently, contact the Allen-Bradley Company
or replace the unit.
Check the wiring of the cooling fan for the slave unit 2 and the AC
reactor.
Verify that no foreign material is caught in the cooling fans for the
slave unit 2 and the AC reactor.
If the error occurs intermittently, contact the Allen-Bradley Company
or replace the cooling fan or the Power Interface Board (PIFS).
Make the phases (L
1
, L
2
and L
3
) of the AC main power same as
those of the control power.
If the error occurs intermittently, contact the Allen-Bradley Company
or replace the Power Interface Board (PIFS).
Table 8.D
List of Error Codes Relating to Slave Units 2
Accessing and Clearing the
Entries in the Error Log
RST PRG ENT
READY
READY
FAULT
FAULT
PROGRAM
PROGRAM
kW
kW
V
A
RST PRG ENT
READY
READY
FAULT
FAULT
PROGRAM
PROGRAM
kW
kW
V
A
(1) This is applicable only to Model 8720MC-RPS190BM and 8720MC-RPS190BS units.