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All combinations can be mounted side-by-side. The combination "4+4" and "12+12" can also
be installed with only a single stacked row of fans without spacing.
NOTICE
• When you stack the racks, the fan in the top row must always be switched on.
• When mounting the frame stacked, you need to observe a temperature derating of
• To control a fan, at least one POM4220 must be mounted in the frame below.
Restrictions when using the POM4220 Highend
Due to the power requirement of the POM4220, you cannot operate 24 POM4220 Highend
at one CIM.
You can determine the maximum permitted number of POM4220 at one CIM with the table
below:
POM
POM4220 Highend
POM4220 Lowend
POM4220 Midrange
phase angle control
POM4220 Flexible
SIPLUS HCS4200 PROFINET/PROFIBUS DP
Operating Instructions, 07/2019, A5E35066204A/006
The user switches it on and off via a data record. See Acyclic output data (Page 164).
10 °C.
1
21
Possible POM combinations
2
3
4
5
6
18
17
16
15
14
Application planning
4.4 Installation location
7
8
9
10
11
13
12
11
10
8
12
13
14
15
5
3
2
1
41
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