Novenco ZerAx axial fan types AZL-AZN-AZW
– Installation and maintenance
28 of 30
Appendix - D. Wiring – six-leads motor – no frequency converter
Appendix - E. Wiring – terminal box to frequency converter
Appendix - F. Wiring – three-leads motor – with frequency converter
Figure 14.
Terminal box delta-connection
Figure 15.
Terminal box star-connection
U1
U1
L1
L2
L3
PE
#1
#2
W2
V1
U2
W1
V2
PE
L
N
1
2
L
N
1
2
U1
W2
V1
U2
W1
V2
PE
V1
W1
W2
U2
V2
Circuit breaker
(customer part)
Customer PTC
Terminal box
(delta)
Fan
U1
U1
L1
L2
L3
PE
#1
#2
V1
W1
U2
V2
W2
PE
L
N
1
2
L
N
1
2
U1
V1
W1
U2
V2
W2
PE
V1
W1
W2
U2
V2
Circuit breaker
(customer part)
Customer PTC
Terminal box
(star)
Fan
Figure 16.
Terminal box delta-connection
Figure 17.
Terminal box star-connection
U1
W2
V1
U1
V1
W1
U2
W1
V2
PE
L1
L2
L3
PE
L1
L2
L3
PE
PE
Frequency
converter
Terminal box
(delta)
Circuit breaker
(customer part)
U1
V1
W1
U1
V1
W1
U2
V2
W2
PE
L1
L2
L3
PE
L1
L2
L3
PE
PE
Frequency
converter
Terminal box
(delta)
Circuit breaker
(customer part)
Figure 18.
Frequency converter connection for all motors
U1
V1
W1
U1
M
W2
V1
U2
W1
V2
PE
PE
U1
W2
V1
U2
W1
V2
PE
PE
L1
L2
L3
PE
L1
L2
L3
Circuit breaker
(Customer part)
Frequency
converter
Fan
Terminal box
