Commander SE User Guide
Issue Number 5 21
4.3.6 Minimum Mounting Clearances
Figure 4.6 Minimum mounting clearances (applies to all Drive sizes).
4.4 Electrical installation
Electric shock risk
The voltages present in the following locations can cause severe electric
shockandmaybelethal:
• AC supply cables and connections
• Output cables and connections
• Many internal parts of the Drive, and external option units
Isolation device
The AC supply must be disconnected from the Drive using an approved
isolation device before any cover is removed from the Drive or before any
servicing work is performed.
STOP function
The STOP function does not remove dangerous voltages from the Drive or
any external option units.
Stored charge
The Drive contains capacitors that remain charged to a potentially lethal
voltage after the AC supply has been disconnected. If the Drive has been
energised, the AC supply must be isolated at least ten minutes before work
may continue.
Normally, the capacitors are discharged by an internal resistor. Under
certain, unusual fault conditions, it is possible that the capacitors may fail to
discharge,or be prevented from being discharged by a voltage appliedto the
output terminals. If the Drive has failed in a manner that causes the display
to go blank immediately, it is possible the capacitors will not be discharged.
In this case, consult Control Techniques or their authorised distributor.
1
8
1
8
100mm
(/in)
3
4
100mm
(/in)
3
4
10mm
(/in)
3
8
10mm
(/in)
3
8
20mm
(/in)
3
4
WARNING
WARNING
WARNING
WARNING
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