Electrical Interference
EMI
Careful attention must be given to the arrangement of power and ground connections to the drive to avoid interference with nearby sensitive equipment. Be sure to replace all ground connections to their appropriate locations.
RFI
Drives can be installed with an RFI filter, which controls
Where it is essential that very low emission levels must be achieved or if conformity with standards is required, the optional RFI filter may be present. Figure 21 displays an electrical schematic for various RFI configurations. shows associated RFI filter part numbers.
CAUTION
ELECTRIC SHOCK HAZARD! Service and
maintenance to be performed only by an authorized technician. Disconnect power before opening any access panels.
W661
SINGLE PHASE MACHINES
1 | 2 |
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INPUT | L1 | LINE | LOAD | |||
POWER | L2 | RFI | ||||
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| FILTER |
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| 2 | 3 | |
| 3 | PROVEN EARTH GROUND |
| TO AC DRIVE UNIT Ð | ||
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| AC DRIVE GROUND TERMINAL. | |
WASHING | BLACK WIRES WILL CONNECT TO AC DRIVE | |||
INPUT TERMINALS "R", "S" & "T". | ||||
MACHINE | ||||
BLACK WIRES ARE NOT LABELED AND THEIR | ||||
GROUNDING | ||||
RESPECTIVE TERMINATION IN AC DRIVE IS | ||||
TERMINAL | ||||
NOT OF IMPORTANCE. | ||||
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THREE PHASE MACHINES
1 | 2 |
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INPUT | L1 | LINE |
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L2 |
| LOAD | |||
POWER | RFI | ||||
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| L3 |
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| FILTER |
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| 2 | 3 |
| 3 | PROVEN EARTH GROUND |
| TO AC DRIVE UNIT Ð | |
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| ||
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| AC DRIVE GROUND TERMINAL. | |
WASHING | BLACK WIRES WILL CONNECT TO AC DRIVE | |
INPUT TERMINALS "R", "S" & "T". | ||
MACHINE | ||
BLACK WIRES ARE NOT LABELED AND THEIR | ||
GROUNDING | ||
RESPECTIVE TERMINATION IN AC DRIVE IS | ||
TERMINAL | ||
NOT OF IMPORTANCE. | ||
| ||
| U166ME3A |
U166ME3A
Figure 21
F232120 | © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT | 37 |