English-21 
Fault 
Name 
Fault Descriptions  Corrective Actions 
 
CC (current clamp)
 
OV hardware error 
 
GFF hardware 
error 
 
OV or LV 
 
Current sensor 
error  
 
U-phase error 
 
W-phase error 
Return to the factory. 
 
Phase Loss  Check input phase wiring for loose contacts. 
 
Software 
protection failure 
Return to the factory. 
 
PID feedback 
signal error 
1. Check parameter settings (Pr.116) and AVI/ACI wiring. 
2.  Check for possible fault between system response time and 
the PID feedback signal detection time (Pr.123) 
 
Dimensions 
H
DD1
H1
W1
W
H2
 
Unit: mm [inch] 
Model Name  W  W1  H  H1  H2  D  D1 
VFD004M21A/23A, 
VFD007M21A/23A, 
VFD015M21A/23A 
85.0 
[3.35]
74.0 
[2.91]
141.5
[5.57]
130.5 
[5.14] 
10.0 
[0.39]
113.0
[4.45]
10.0 
[0.39]
VFD002M11A, 
VFD004M11A/21B, 
VFD007M11A/21B/43B/53A, 
VFD015M21B/43B/53A, 
VFD022M23B/43B/53A 
100.0
[3.94]
89.0 
[3.50]
151.0
[5.94]
140.0 
[5.51] 
10.0 
[0.39]
116.5
[4.59]
10.5 
[0.41]