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8. VF-PS1 Fault code
Table 14 VF-PS1 Fault Code Table
(Pno.90,91,92)
Data
(Dec)
Data
(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