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12
M’Ax Installation Guide
www.controltechniques.com
Issue Number: 6
Figure 2-7
Arrangement of the drive and associated equipment in
the enclosure
1.
Enclosure. For high ingress protection, this must be sealed and the
drive mounted on the back-plate.
2.
Enclosure back-plate.
3.
When an external braking resistor is to be used, mount the resistor
either above or inside the enclosure, as follows...
Inside Locate the resistor on or near the top panel.
Outside Mount the resistor in an adequately ventilated metal
housing that will prevent inadvertent contact with the resistor.A
separate external braking resistor must be used for each drive
(unless their DC-buses are connected in parallel).
4.
Thermal overload protection relay required for each external braking
resistor. Locate as required.
5.
System controller. Locate as required.
6.
Signal cables and circuits. See the next section in this chapter for
clearances.
7.
Drive mounted vertically on the enclosure back-plate (see 1. above).
8.
Power cables. Position as required.
9.
Isolator, contactor, and fuses or MCBs. Locate as required.
10. Alternative locations of fuses or MCBs. Locate as required.
11. Power cables entering the enclosure. Position as required.
EMC compliance
When compliance with EMC emission standards is required, additional
precautions must be taken; see the EMC emission standards sections
later in this chapter.
2.24
Clearances for the signal cables
Recommended clearances are shown on this page; they are required for
routine EMC precautions as well as for compliance with EMC emission
standards.
Clearance from the drive
Do not locate sensitive
signal circuits or pass
signal cables within
300mm (12 in) of the drive.
Clearance from power
cables
Do not pass signal cables
within 300mm (12 in) of:
•
Motor cables
•
Braking resistor
cables
•
AC supply cables
