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Specifications are subject to change without notice (09.12.05)
5
Operation Diagrams
T
T
T
Latch function - NE relay
Inhibit function - ND relay
DWB02, PWB02
Power supply
Latch contact
(Closed = latch not active)
Upper level
Hysteresis
Hysteresis
Active power
Power
ON
Power
ON
Power
ON
Lower level
Relay ON
Power supply
Inhibit contact
(Closed = inhibit active)
Upper level
Hysteresis
Hysteresis
Active power
Lower level
Relay ON
L2 L3
L1
m
15
16
18
L1
L2
L3
U1
U2
Z1
I2
I1
I1
N
P
P
67
5
m
1
43
L1
L2
L3
9
8
2
10
11
I1
N
P
P
PWB02 - Direct connection - Manual start and stop (NE relay)
DWB02 - Direct connection - Manual start and stop (NE relay)
Start/stop
Contact
Start/stop
Contact
Wiring Diagrams (cont.)
With the start/stop function enabled, it’s necessary to use the following wiring diagrams (which are two examples among
many others). It is possible for both 3-phases loads and of 1-phase loads, either through direct connection or external cur-
rent metering transformer.
T
T
Start and stop function - NE relay
Power
ON
Power supply
Start/Stop contact
(Closed = Start; Open = Stop)
Upper level
Hysteresis
Hysteresis
Active power
Lower level
Relay ON
Power ON