Fuji Electric FRENIC-Ace series - Chapter 6 Troubleshooting; Troubleshooting

Chapter 6
TROUBLESHOOTING
This chapter describes troubleshooting procedures to be followed when the inverter malfunctions or detects an
alarm or a light alarm condition. In this chapter, first check whether any alarm code or the “light alarm” indication
(
l-al ) is displayed or not, and then proceed to the troubleshooting items.
Contents
6.1
Protective Function ································································································ 6-1
6.2 Before Proceeding with Troubleshooting ····································································· 6-2
6.3 If an Alarm Code Appears on the LED Monitor ····························································· 6-3
6.3.1 Alarm code list ······························································································· 6-3
6.3.2 Causes, checks and measures of alarms ···························································· 6-6
[ 1 ] cof PID feedback wire break ········································································· 6-6
[ 2 ] dba Braking transistor broken ········································································ 6-6
[ 3 ] dbh Braking resistor overheat ········································································ 6-6
[ 4 ] ecf EN circuit failure ··················································································· 6-7
[ 5 ] ecl Customizable logic failure ······································································· 6-7
[ 6 ] ef Ground fault ··························································································· 6-7
[ 7 ] er1 Memory error ······················································································· 6-7
[ 8 ] er2 Keypad communications error ·································································· 6-8
[ 9 ] er3 CPU error ···························································································· 6-8
[ 10 ] er4 Option communications error ··································································· 6-8
[ 11 ] er5 Option error ························································································· 6-8
[ 12 ] er6 Operation error ····················································································· 6-9
[ 13 ] er7 Tuning error ························································································· 6-9
[ 14 ] er8 RS-485 communications error (Communications port 1)/
erp RS-485 communications error (Communications port 2) ······························· 6-10
[ 15 ] erd Step-out detection/detection failure of magnetic pole position at startup ··········· 6-11
[ 16 ] ere Speed inconsistency / Excessive speed deviation ······································· 6-12
[ 17 ] erf Data saving error during undervoltage ······················································ 6-13
[ 18 ] erh Hardware error ···················································································· 6-13
[ 19 ] ero Positioning control error ········································································· 6-13
[ 20 ] err Simulated failure ·················································································· 6-14
[ 21 ] ert CAN communications failure ··································································· 6-14
[ 22 ] fus DC fuse-blowing ·················································································· 6-14
[ 23 ] lin Input phase loss ·················································································· 6-15
[ 24 ] lu Undervoltage ························································································ 6-15