Motor fan starters and contactors (options
+M602…610)
24Switch (F90) for ground fault monitoring
(item 12)
6
Terminal blocks (X601) for motor fan connec-
tions (options +M602…610)
25FSO-xx safety functions module (option
+Q972 or +Q973 and other options requiring
FSO-xx)
7
24 V DC power supply for cabinet lighting
(option +G301)
26Temperature monitoring relays (options
+L505 and +L506). The terminals (X506) are
located on the back of the detachable
mounting plate.
8
Auxiliary voltage transformer T101 (at the
back of the cubicle, not visible). Supplies
IP54, brake chopper and brake resistor cab-
inet cooling fans (options +B055, +D150 and
+D151).
27Swing-out frame9
Auxiliary voltage transformer T21 (at the back
of the cubicle, not visible). Supplies the con-
trol circuitry and the cooling fans in both the
incoming unit (ICU) and the auxiliary control
unit (ACU).
28Mounting rail for additional equipment10
Auxiliary voltage transformer T111. (Custom-
ized equipment only.)
29Safety relays for safety options (emergency
stop, safe torque off)
11
Auxiliary voltage circuit breakers F22 and
F102. On the secondary of transformers T21
(item 28) and T101 (item 27) respectively.
30Ground fault monitoring equipment for un-
grounded systems (option +Q954)
12
Input voltage setting for auxiliary voltage
transformer T101 (item 27)
31FEA-03 extension adapter (option +L515).13
Input voltage setting for auxiliary voltage
transformer T21 (item 28)
32Switch and circuit breaker for externally-
supplied motor space heater (option +G313).
The terminals (X313) are located on the back
of the detachable mounting plate.
14
Input voltage setting for auxiliary voltage
transformer T111 (item 29)
33Switch and circuit breaker for externally-
supplied control voltage (option +G307), eg.
UPS. The terminals (X307) are located on the
back of the detachable mounting plate.
15
Terminal blocks34Switch and circuit breaker for externally-
supplied cabinet lighting and heating (op-
tions +G300 and +G301). The terminals
(X300) are located on the back of the detach-
able mounting plate.
16
X250: indication of main switch-disconnector
and contactor status
X951: connection of external emergency stop
button
X954: ground fault alarm indication
X957: for connection of Prevention of unex-
pected start-up switch.
Mounted on the left-hand side wall.
Cubicle heater element (option +G300).
Mounted on the right-hand side wall.
35Fuse-disconnectors F21. On the primary of
transformer T21 (item 28). Mounted on a de-
tachable plate.
17
Fuse-disconnectors F111. On the primary of
transformer T111 (item 29). Mounted on a
detachable plate.
18
Operation principle and hardware description 43
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