Power Cabling - Honeywell SmartVFD HVAC MR4 User Manual

P
OWER CABLING
4. P
OWER CABLING
The mains cables are connected to terminals L1, L2 and L3 and the motor cables to terminals
marked with U, V and W. See Table 7 for the cable recommmendations for different EMC lev-
els.
Use cables with heat resistance of at least +158°F. The cables and the fuses must be dimen-
sioned according to the drive nominal OUTPUT current which you can find on the rating plate.
Cable type
Mains cable
Motor cable
Control cable
1 = Power cable intended for fixed installation and the specific mains voltage. Shielded
cable not required. (MCMK or similar recommended).
2 = Symmetrical power cable equipped with concentric protection wire and intended for the
specific mains voltage. (MCMK or similar recommended). See Figure 16.
3 = Symmetrical power cable equipped with compact low-impedance shield and intended
for the specific mains voltage. [MCCMK, EMCMK or similar recommended; Recom-
mended cable transfer impedance (1...30MHz) max. 100mohm/m]. See Figure 16.
*360º grounding of the shield with cable glands in motor end needed for EMC level C2.
4 = Screened cable equipped with compact low-impedance shield (JAMAK, SAB/ÖZCuY-
O or similar).
NOTE: The EMC requirements are fulfilled at factory defaults of switching frequencies (all
frames).
NOTE: If safety switch is connected the EMC protection shall be continuous over the whole ca-
ble installation.
st
1 environment 2nd environment
According to EN61800-3 (2004)
Category C2
1
3*
4
Table 7. Cable types required to meet standards
PE conductor
and shield
Figure 16.
EMC levels
Category C3 Level T
1
2
4
PE conductors
Shield
Honeywell
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1
2
4
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