Chapter 14 Fault Codes and DescriptionsC2000  Plus 
 
Chapter 14 Fault Codes and Descriptions 
 
Summary of Fault Codes 
ID No.  Fault Name  ID No.  Fault Name 
0  No fault record  34  V-phase error (cd2) 
1  Over-current during acceleration (ocA)  35  W-phase error (cd3) 
2  Over-current during deceleration (ocd)  36  cc hardware failure (Hd0) 
3  Over-current during steady operation (ocn)
37  oc hardware error (Hd1) 
4  Ground fault (GFF)  38  ov hardware error (Hd2) 
5 
IGBT short circuit between upper bridge 
and lower bridge (occ) 
39  occ hardware error (Hd3) 
6  Over-current at stop (ocS)  40  Auto-tuning error (AUE) 
7  Over-voltage during acceleration (ovA)  41  PID loss ACI (AFE) 
8  Over-voltage during deceleration (ocd)  42  PG feedback error (PGF1) 
9  Over-voltage at constant speed (ovn)  43  PG feedback loss (PGF2) 
10  Over-voltage at stop (ovS)  44  PG feedback stall (PGF3) 
11  Low-voltage during acceleration (LvA)  45  PG slip error (PGF4) 
12  Low-voltage during deceleration (Lvd)  48  ACI loss (ACE) 
13  Low-voltage at constant speed (Lvn)  49  External fault (EF) 
14  Low-voltage at stop (LvS)  50  Emergency stop (EF1) 
15  Phase loss protection (OrP)  51  External base block (bb) 
16  IGBT overheating (oH1)  52  Password is locked (Pcod) 
17  Overheat key components (oH2)  53  SW code error (ccod) 
18  IGBT temperature detection failure (tH1o)  54  Illegal command (CE1) 
19  Capacitor hardware error (tH2o)  55  Illegal data address (CE2) 
21  Over load (oL)  56  Illegal data value (CE3) 
22 
Electronic thermal relay 1 protection 
(EoL1) 
57  Data is written to read-only address (CE4) 
23 
Electronic thermal relay 2 protection 
(EoL2) 
58  Modbus transmission time-out (CE10) 
24  Motor overheating (oH3) PTC / PT100  60  Brake transistor error (bF) 
25  Interrupt error (INTR)  61 
Y-connection / D-connection switch error 
(ydc) 
26  Over torque 1 (ot1)  62  Deceleration energy backup error (dEb) 
27  Over torque 2 (ot2)  63  Over slip error (oSL) 
28  Under current (uC)  64  Electric valve switch error (ryF) 
29  Limit Error (LiT)  65  Hardware error of PG card (PGF5) 
30  EEPROM write error (cF1)  68 
Reverse direction of the speed feedback 
(SdRv) 
31  EEPROM read error (cF2)  69  Over speed rotation feedback (SdOr)