Showa Denki Mistresa CRG Series, Operation Manual & Cautions

Page: 18 / 24

Installation nut Main body
Bush S Bush M
Fastener band
Screw size
M3.5
Tightening torque
0.87N·m (max0.96N·m)
(2) Power supply connection
WARNING
① Be sure that the power supply conforms to the rated voltage and rated
frequency requirements.
• When using inverter controlled operation, protect the motor by
incorporating the motor burnout prevention terminals "A" and "B"
in the inverter's control circuit.
In addition, if it is inverter operation at different voltage (more
than 380V), you will need a motor insulation strengthening.
• Permissible voltage fluctuation range:
Continuous…Rated voltage within ±5%
Momentary…Rated voltage within ±10%
②
Please connect the
ground wire
sure.
③
The impeller should be rotating in the clockwise direction as viewed
from the suction port side. Verify that the rotation direction is correct
before beginning operation.
④ The terminal block's "A" and "B" terminals (with white leads) are for
motor burnout prevention. The method for using these terminals is
described in item 3) below.
⑤
When using crimp terminals, either cover the crimp area with an
insulation tube, or use insulated type crimp terminals.
⑥ For the electrical installation and wiring, be sure to use the cord lock
installed on the terminal box.
Procedure
:
1. Select the bush commensurate
with the cord from the
attached bushes.
2. Put the cord through the cord lock.
3. Tighten the fastener band to secure the cord in place. Check that
the cord is securely tightened.
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Bush symbol
S
M
None
Applicable cord diameter (mm)
6.0 to 8.0
8.0 to 10.0
10.0 to 12.0