Q9 Plus ASD Installation and Operation Manual
5
Conductor Routing and Grounding
•
Use separate metal conduits for routing the input power, output power, and control circuits.
•
A separate ground cable should be run inside the conduit with the input power, output power, and
control circuits.
•
DO NOT
connect
CC
to earth ground.
•
Use
IICC
terminal as the return for the
V/I
input.
•
Always ground the unit to prevent electrical shock and to help reduce electrical noise.
•
It is the responsibility of the ASD installer/maintenance personnel to provide proper grounding and
branch circuit protection in accordance with the
NEC
and any applicable local codes.
— T h e M e t a l O f C o n d u i t I s N o t A n A c c e p t a b l e G r o u n d —
Grounding Capacitor Switch
The ASD is equipped with leak reduction capacitors which are used to reduce the EMI leakage via the
3-phase power-input circuit and for compliance with the
Electromagnetic Compatibility Directive
(EMC).
The effective value of the capacitor may be increased, reduced, or removed entirely via the
Selector
Switch
,
Switching Bar
, or the
Switching Screw
— the type used is typeform-specific.
The
Grounding Capacitor Switch
allows the user to quickly change the value of the leakage-reduction
capacitance of the 3-phase input circuit without the use of any tools.
See the section titled
Power Connection Requirements on pg. 16
for more on the Grounding Capacitor
Switch.
See figures
4
,
5
,
6
, and
7 on pg. 18
for an electrical depiction of the leakage-reduction functionality of
the Grounding Capacitor Switch and the methods used to set the capacitance value.
WARNING
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