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18 Operation principle and hardware description
￭
Auxiliary control cubicle layout
1
Control panel [A59] (option +J400, or +J425)
2
Operating switch [S21], emergency stop button [S61], etc.
3
CIO-01 I/O module for cooling fan monitoring [A115.99]
4
BCU control unit [A51]
5
Auxiliary voltage transformers behind the assembly plates ([T21] option +G344, [T115] option +G451,
in some deliveries also [T125])
6
Cooling fan and heat exchanger [G115.99]
7
Inlet manifold with stop and drain valves
8
Outlet manifold with stop and drain valves
1
3
2
7
4
5
8
6
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