McQuay RVSS14, Инструкция по установке, эксплуатации и обслуживанию, Страница: 10 / 66

10 IOMM Starter
•
Wire runs outside of an enclosure should be run in metallic conduit or have
shielding/armor with equivalent attenuation.
•
Different wire groups should cross at 90 degrees whenever power and control wiring
cross.
•
Different wire groups should be run in separate conduits.
•
Adhere to local electrical codes.
•
The National Electrical Code and Canadian Electrical Code requires that an approved
circuit disconnecting device be installed in series with the incoming AC supply in a
location readily accessible to personnel installing or servicing this equipment. If a
disconnect switch is not supplied with the starter, one must be installed.
•
Supply and motor wiring will usually enter and leave the enclosure from the top. Wire
connections can be determined to best suit specific installations. Wire runs should be
properly braced to handle both starting and fault currents. Size power cable per local
electrical codes. Long lengths of cable to the motor of over 150 feet must be de-rated.
BEFORE APPLYING MAIN POWER
The starter has been fully tested before leaving the factory to help a rapid and problem-
free start-up. Before applying power to the starter, consult the start-up checklist below.
1. Inspect starter and remove any foreign matter.
2. Inspect the starter for any shipping damage.
3. Ensure that all electrical connections are as per the system schematics supplied with
the starter and/or connection diagrams.
4. Ensure that all connections are properly tightened.
5. Test L to T resistance of each phase and ensure that it is greater than 50 kohms.
Reverse leads and test again.
6. Check that the gate to cathode resistance of each SCR is between 8 and 50 ohms.
7. Check the resistance of all power and motor leads to ground to ensure that there is no
foreign matter present or damage to the insulation which can short one or more of the
phases to ground.
8. Apply 120 Vac control voltage to the starter.
Connection Sizes
Low Voltage Solid State
Table 2, Solid State Connection Sizes, Power Block
Starter
Model No.
(Note 1)
Incoming
Connection to
Power Block
Outgoing
Connection Size
(Note 2)
RVSS14 2/C #6-300
0.5
RVSS17 2/C #6-300 0.5
RVSS20 2/C #6-300 0.5
RVSS27 2/C #6-300 0.5
RVSS34 2/C #6-300 0.5
RVSS41 2/C #6-300 0.5
RVSS47 2/C #6-350 0.5
RVSS57 4/C 1/0 - 750 0.5
RVSS67 4/C 1/0 - 750 0.5
RVSS82 4/C 1/0 - 750 0.5
RVSS96 4/C 1/0 - 750 0.5
RVSS2K 4/C 1/0 - 750 0.5
RVSS4K 4/C 1/0 - 750 0.5
NOTES:
1. Data is the same for unit-mounted
starters, RVS
T 14, etc.
2. Outgoing are NEMA 1 hole pattern.
3. Outgoing connections are factory-
connected to the motor on factory-
mounted starters.
4. When connecting to a starter with
the standard power block, the
incoming connection size is
determined by the starter size as
listed in the above table.