Commander SE User Guide
26
Issue Number 5
For further information on the cable screening brackets and screening clamps kit, refer
to the Commander SE Advanced User Guide and the EMC Data sheets which are
available from Control Techniques’ Drive Centres and Distributors.
4.5.3 Special requirements
Special considerations are required for the following requirements:
Meeting the residential emission standard, EN50081-1 (Size 1 only)
One of the footprint filters (part number 4200-6102 or 4200-6103) must be used.
Interruptions to the motor cable
The motor cable should ideally be a single run of shielded cable having no
interruptions. In some situations it may be necessary to interrupt the cable, for example
to connect the motor cable to a terminal block within the Drive enclosure, or to fit an
isolator switch to allow safe working on the motor. In these cases both motor cable
shield connections must be clamped directly to the back-plate or other flat metallic
structure, as illustrated in figures 4.8 and 4.9. Keep the length of unscreened power
conductors to a minimum, keep them as close as possible to the metal plate, and
ensure that all sensitive equipment and circuits are at least 0.3m (12in) away from
them.
Terminal block within enclosure
Refer to Figure 4.8.
Figure 4.8 Connecting the motor cable to a terminal block in the enclosure.
Using a motor isolator switch
Refer to Figure 4.9.
Figure 4.9 Connecting the motor cable to an isolating switch.
From the Drive
To the motor
Back-plate
Enclosure
Isolator
Coupling bar
From the
Drive
To the
motor
(If required)
