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5.1. VF-PS1 Fault code
VF-PS1 Fault Code Table
Code
(Dec)
Code
(Hex) Description Display
0 0 No error nerr
1 1 Over-current during acceleration oc1
2 2 Over-current during deceleration oc2
3 3 Over-current during constant speed operation oc3
4 4 Over-current in load at startup ocl
5 5 U-phase arm overcurrent ocai
6 6 V-phase arm overcurrent oca2
7 7 W-phase arm overcurrent oca3
8 8 Input phase failure ephi
9 9 Output phase failure epho
10 A Overvoltage during acceleration op1
11 B Overvoltage during deceleration op2
12 C Overvoltage during constant speed operation op3
13 D Over-LOAD in inverter ol1
14 E Over-LOAD in motor ol2
15 F Dynamic braking resistor overload olr
16 10 Overheat oh
17 11 Emergency stop e
18 12 EEPROM fault eep1
19 13 Initial read error eep2
20 14 Initial read error eep3
21 15 Inverter RAM fault err2
22 16 Inverter ROM fault err3
23 17 CPU fault err4
24 18 Communication time-out error err5
25 19 Gate array fault err6
26 1A Output current detector error err7
27 1B Option error err8
29 1D Low current operation status uc
30 1E Undervoltage (main circuit) up1
32 20 Over-torque trip ot
33 21 Ground fault trip ef1
34 22 Ground fault trip ef2
36 24 Dynamic braking abnormal element ocr
37 25 Overcurrent during acceleration (element overheat) oc1p
38 26 Overcurrent during deceleration (element overheat) oc2p
39 27 Overcurrent during fixed speed operation (element overheat) oc3p
40 28 Tuning error etn
41 29 Inverter type error etyp
42 2A Analog input terminal overvoltage e-10
43 2B Abnormal brake sequence e-11
44 2C Disconnection of encoder e-12
45 2D Speed error e-13
46 2E External thermal oh2
47 2F Step-out (for PM motors only) sout
50 32 Terminal input error e-18
51 33 Abnormal CPU2 communication e-19
52 34 V/f control error e-20
53 35 CPU1 fault e-21
54 36 Abnormal logic input voltage e-22
55 37 Option 1 error e-23
56 38 Option 2 error e-24
57 39 Stop position retaining error e-25
58 3A CPU2 fault e-26
61 3D Control circuit option error e-29
84 54 f410 tuning error etn1
85 55 f412 tuning error etn2
86 56 Motor constant setting error etn3