26 Wiring
Wiring
Wiring for the power source, earthing and external signal.
Observe the following points during wiring work
.
• Electrical work shall be performed by a quali
fi
ed operator. Always ob-
serve applicable codes or regulations.
• Observe the rated voltage range. Otherwise the electrical circuit on the
control unit may break.
• Do not perform wiring work while the power is on. Otherwise, an electri-
cal shock and short circuit may result, and consequently the pump may
fail. Be sure to turn off power before wiring work.
• Be careful for the power not to be turned on during work.
Necessary tools
• Adjustable wrench or spanner
• Phillips screw driver
• Precision screw driver
Power supply/Earthing
Check that the main power is turned off.
Connect power cable via crimp contacts.
Earth the pump.
Be sure to earth the pump.
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Summary of Contents for EHN-R
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