Chapter 14 Fault CodesMH300
Chapter 14 Fault Codes
Summary of Fault Codes
ID No. Fault Name ID No. Fault Name
0 No fault record 36 cc hardware failure (Hd0)
1 Over-current during acceleration (ocA) 37 oc hardware error (Hd1)
2 Over-current during deceleration (ocd) 40 Auto-tuning error (AUE)
3 Over-current during steady operation (ocn) 41 PID loss ACI (AFE)
4 Ground fault (GFF) 42 PG feedback error (PGF1)
5
IGBT short circuit between upper bridge
and lower bridge (occ)
43 PG feedback loss (PGF2)
6 Over-current at stop (ocS) 44 PG feedback stall (PGF3)
7 Over-voltage during acceleration (ovA) 45 PG slip error (PGF4)
8 Over-voltage during deceleration (ovd) 48 ACI loss (ACE)
9 Over-voltage at constant speed (ovn) 49 External fault (EF)
10 Over-voltage at stop (ovS) 50 Emergency stop (EF1)
11 Low-voltage during acceleration (LvA) 51 External base block (bb)
12 Low-voltage during deceleration (Lvd) 52 Password is locked (Pcod)
13 Low-voltage at constant speed (Lvn) 54 Illegal command (CE1)
14 Low-voltage at stop (LvS) 55 Illegal data address (CE2)
15 Phase loss protection (OrP) 56 Illegal data value (CE3)
16 IGBT overheating (oH1) 57 Data is written to read-only address (CE4)
17 Internal key parts overheating (oH2) 58 Modbus transmission time-out (CE10)
18 IGBT temperature detection failure (tH1o)
61
Y-connection / Δ-connection switch fault
(ydc)
19 Capacitor hardware error (tH2o) 62 Deceleration energy backup fault (dEb)
21 Over load (oL) 63 Over slip error (oSL)
22 Electronic thermal relay 1 protection (EoL1)
65 Hardware error of PG card (PGF5)
23 Electric thermal relay 2 protection (EoL2) 72 STO loss 1 (STL1)
24 Motor overheating (oH3) PTC / PT100 76 STO (STO)
26 Over torque 1 (ot1) 77 STO loss 2 (STL2)
27 Over torque 2 (ot2) 78 STO loss 3 (STL3)
28 Under current (uC) 79 U-phase over-current before run (Aoc)
29 Limit error (LiT)
80 V-phase over-current before run (boc)
31 EEPROM read error (cF2) 81 W-phase over-current before run (coc)
33 U-phase error (cd1) 82 Output phase loss U phase (OPHL)
34 V-phase error (cd2) 83 Output phase loss V phase (OPHL)
35 W-phase error (cd3) 84 Output phase loss W phase (OPHL)
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