Hanbell RC2-F Series, Manual

Page: 69 / 117

68
Y-
Δ Starting features
1. Starting current in Y connection is 1/3 of lock rotor ampere.
2. Starting torque in Y connection is 1/3 of lock rotor torque.
3. Acceleration of motor rotor becomes smaller at full-load starting,
，
therefore compressors require starting at
partial load.
Δ/ΔΔ (PW) starting
RC2-100F ~ RC2-580F
are available to be fitted with PWS motor for customer’s application as an optional
accessory
。
Please refer to the follow diagram for the wiring of PWS motor.
Full load Amper
Starting Current
Time
I
(AMP)
sec
PW2:7,8,9 B:Pt100Ω / Pt1000Ω
(Option)
PW1:1,2,3
9 3
A:PTC
2 8
Earth Bolt
7 1
A
B
The selection of both of the motor contactors (k1 / k2) is each for approx. 60% of the max. running current. The
recommended time delay of the switching relay k1 is to be set at 0.5 second and not more than 1 second.