Application manual HVAC232/402 | Document 27-652 | Issue ENG06 | 2019-08-07
31
3.9
Stripping lengths of motor and mains
cables
20 mm
35 mm
8 mm
8 mm
Earth conductor
Fig. 34. Stripping of cables
NOTE:
Strip also the plastic cover of the cables for 360 degree earthing.
See Figures „Fig. 20. HVAC232/402
power connections, MI1“ on page 23, „Fig. 21. HVAC232/402
power connections, MI2 - MI3“ on page 23 and „Fig. 24.
Mount the PE-plate and API cable support,
MI1 - MI3“ on page 24.
See Chapter „6.2
General cabling rules
1
Before starting the installation, check that none of the components
of the frequency converter is live.
2
Place the motor cables sufficiently far from other cables:
• Avoid
placing the motor cables in long
parallel lines
with other
cables.
• If the motor cable runs in parallel with other cables, the
minimum
distance
between the motor cable and other cables is 1 ft. (
0.3 m
)
• The given distance also applies between the motor cables and sig-
nal cables of other systems.
• The
maximum length
of the motor cables for MI1-3 is 98 ft. (
30 m
).
For MI4 & 5, maximum length is 164 ft. (50 m), if use longer cable,
current accuracy will be decreased.
• The motor cables should cross other cables at an angle of
90 de-
grees
.
3
If cable insulation checks are needed, see Chapter „3.11 Cable and
motor insulation checks“ on page 32.
4
Connecting the cables:
• Strip the motor and mains cables as advised in Figure „Fig. 34.
Stripping of cables“ on page 31.
• Connect the mains, motor and control cables into their respective
terminals, see Figures 3.16 to 3.29 and see Chapter „6.2 Con-
trol I/O“ on page 42.
• Note the tightening torques of
power cables and control
cables
given in Chapter „Power cabling“ on page 23 and „Control Ca-
bling“ on page 24.
• For information on cable installation see Chapter „3.10 Cable in-
• Make sure that the control cable wires do not come in contact with
the electronic components of the unit.
• Check the connection
of the earth cable to the motor and the fre-
quency converter terminals marked with
.
• Connect the
separate shield of the motor cable to the earth
plate
of the frequency converter, motor and the supply centre.
Summary of Contents for HVAC232 Series
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