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Chapter 3 Wiring | IED-S
After removing the front cover, verify that the power and control terminals are clear. Be sure to observe
the following precautions when wiring.
Make sure that power is only applied to the R/L1, S/L2, and T/L3 terminals. Failure to comply may
result in damage to the equipment. The voltage and current should be within the range indicated on
the AC motor drive nameplate (see Section 1-1 Nameplate Information).
All the units must be grounded directly to a common ground terminal to prevent damage from a
lightning strike or electric shock.
Make sure you correctly tighten the main circuit terminal screws to prevent sparks from screws that
have been loosened due to vibration.
Turn off the IED-S power before installing any wiring. A hazardous charge may still
remain in the DC bus capacitors after the power has been turned off. Measure the
remaining voltage before wiring. For your safety, do not perform any wiring before
the voltage drops to a safe level < 25 V
voltage remains may cause sparks and short circuits.
Only qualified personnel familiar with IED-S are allowed to perform installation,
wiring and commissioning. Make sure the power is turned off before wiring to
prevent electric shock.
When wiring, choose wires that comply with local regulations for your safety.
Check the following items after finishing the wiring:
1. Are all connections correct?
2. Are there any loose wires?
3. Are there any short circuits between the terminals or to ground?
. Performing a wiring installation while
DC
3-2
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