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Conductor Routing and Grounding
WARNING |
•Use separate metal conduits for routing the input power, output power, and control circuits and each shall have its own ground cable.
•A separate ground cable should be run inside the conduit with the input power, output power, and 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 person installing the H9 ASD or the electrical maintenance personnel to provide proper grounding and branch circuit protection in accordance with the 2005 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 H9 ASD is equipped with leak reduction capacitors which are used to reduce the EMI leakage via the
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
The Grounding Capacitor Switch allows the user to quickly change the value of the
See the section titled Power Connection Requirements on pg. 17 for more on the Grounding Capacitor.
See figures 4, 5, 6, and 7 on pg. 19 an electrical depiction of the
The H9 ASD is equipped with a noise reduction capacitor which is used to reduce the noise of the 3- phase input circuit. The capacitor may be removed from the circuit electrically using the Grounding Capacitor Switch (see Figure 2 on pg. 16).
The switch has a
H9 ASD Installation and Operation Manual | 5 |