Eq5 ac drive operations manual – HP Anab EQ5 User Manual
Page 17
EQ5 AC Drive Operations Manual
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TECO – Westinghouse Motor Company Power Terminal Designations & Wiring 11
R0 T0
G
G
L1/R
L2/S
L3/T
POWER INPUT
L1/R
L2/S
L3/T
U
V
W
MOTOR
U
V
W
P1
P1
P(+)
P(+)
N(-)
N(-)
Screw size: M4
Screw size: G M10 –
Other Terminals M12
500 – 600 HP 460 VAC
R0 T0
G
G
L1/R
L2/S
L3/T
POWER INPUT
L1/R
L2/S
L3/T
U
V
W
MOTOR
U
V
W
P1
P1
P(+)
P(+)
N(-)
N(-)
Screw size: M4
Screw size: G M10 –
Other Terminals M12
700 – 800 HP 460 VAC
Table 2-3-1 Functions of Main Circuit Terminals and Ground Terminals
Symbol
Terminal Name
Description
L1/R, L2/S, L3/T
Main circuit input power
terminals.
Connects to a 3-phase power supply.
U, V, W
Inverter output terminals Connects to a 3-phase motor.
R0, T0
Auxiliary control-power
input terminals.
Connects a backup AC power supply to the
control circuit. (Not applicable to inverters
of 1HP or less)
P1, P (+)
DC link reactor terminal
connection.
Connects a power-factor correcting DC link
reactor. (optional)
P (+), DB
External braking resistor
terminal connections.
Connects an external braking resistor for
inverters 10HP/CT, 15HP/VT or less.
P (+), N (-)
DC link circuit terminals
Supplies DC link voltage to the external
braking or power regeneration unit
(optional).
G
Inverter ground terminal
Inverter chassis (case) ground.
1. Main circuit input power terminals (L1/R, L2/S, L3/T)
a. For circuit (wiring) protection, connect these terminals to the input power supply using a
molded-case circuit breaker or a ground-fault circuit interrupter. Phase-sequence
matching is unnecessary.
b. To ensure safety, a magnetic contactor should be connected to disconnect the inverter
from the input power supply when the inverter protective function activates.
c. The main circuit input power should be used to start or stop the inverter only if absolutely
necessary and then should not be used more than once every hour.
d. If you need to connect these terminals to a single-phase power supply, please consult
the factory.