Siemens Sitrans WM100 Operating Instructions Manual - Page 11
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WM100 Typical Wiring
L1
Stop
note 3
Stop
note 3
Should the time delay feature on start up not be required, power should be applied
continuously from a separate source. Typically this would be desirable for automatic up-
stream start up of conveying devices after down stream drive has reached its operation
speed.
Notes:
1.
Interlocks and safety pull switches are not shown.
2.
If 'START' is initiated by programmable logic controller, closure time may
be of insufficient duration to allow WM100 contact to latch. In such a
case, program a timer contact into circuit.
3.
CSA requires a 3 A or less fuse to protect contacts. For 240 V AC, protect
contacts with a 1500 VA transformer as well.
7ML19985MW01
115/230 V AC 50/60 Hz
Start
1TB
M1
1 2
note 2
Start
hold until up to speed
1TB
M1
1 2
SITRANS WM100 – OPERATING INSTRUCTIONS
Contactor
WM100
Contactor
WM100
L2/N
Page 7