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E6581381
A-9
1
2) Grounding capacitor disconnecting switch and taps
Warning
Mandatory
The grounding capacitor disconnecting tap is provided with a protection cover. To avoid shock hazards,
always attach the cover after connecting or disconnecting the capacitor to or from the tap.
Every three-phase 400V model has a built-in high-attenuation noise filter, which is grounded through a
capacitor.
If you want to disconnect the capacitor from the grounding line to reduce the amount of leakage current,
you can do so easily using the switch or tap. Keep in mind, however, that disconnecting the capacitor
from the grounding line causes the inverter to become non-compliant with the EMC directive. Also note
that the inverter must always be turned off before the capacitor is disconnected or reconnected.
Note: In case of three phase 400V-5.5kW or less model, if you disconnect the capacitor from ground,
set the parameter of carrier frequency
H to 6kHz with motor cable length 30m or less.
5.5kW or less, 22kW or more: Switch
7.5∼18.5kW: Tap
To connect the capacitor to ground, push this switch.
(Factory default position)
To disconnect the capacitor from ground, pull up this switch.
To disconnect the capacitor from ground, connect the lug terminal
to this tap.
To connect the capacitor to ground, connect the lug terminal to
this tap. (Factory default setting)