21
VersiStart i III
7.1.5
Inside delta installation, internally bypassed
M
3
6/T3
2/T1
13
14
4/T2
K1
U1(1) U2(4)
V1(2)
V2(5)
W1(3)
W2(6)
5/L3
3/L2
1/L1
E
K1
F1
K1
Main contactor (strongly
recommended)
F1
Semiconductor fuses (optional)
13, 14
Relay output A
(= Main Contactor, default)
WARNING
When connecting the VersiStart i III in inside delta configuration, always install a main contactor or shunt trip circuit breaker.
7.1.6
Inside delta installation, externally bypassed
Non-bypassed models have dedicated bypass terminals, which allow the VersiStart i III to continue providing protection and monitoring
functions even when bypassed via an external bypass contactor.
The bypass contactor must be connected to the bypass terminals and controlled by a programmable output configured to Run (refer to
parameters 7A~7I).
M
3
6/T3
2/T1
5/L3
3/L2
1/L1
13
14
4/T2
E
K1
K1
F1
U1(1) U2(4)
V1(2)
V2(5)
W1(3)
W2(6)
L2B
*
L1B
*
L3B
*
K2
24
21
K2
K1
Main contactor (strongly
recommended)
K2
Bypass contactor (external)
F1
Semiconductor fuses (optional)
13, 14
Relay output A
(= Main Contactor, default)
21, 22, 24 Relay output B (= Run, default)
NOTE
The bypass terminals on VS i III 255N are T1B, T2B, T3B. The bypass terminals on VS i III 360N ~ VS i III 1600N are
L1B, L2B, L3B.
The fuses can be installed on the input side if required.
WARNING
When connecting the VersiStart i III in inside delta configuration, always install a main contactor or shunt trip circuit breaker.
