Walker Magnetics SMART-C SERIES - Manual (Page 16)

O.S. WALKER Co., Inc. SMART-C Control
SMART C MANUAL DD-14494D Rev D, March 30, 2011
4-7
4.9 Grounding & Shielding
All electrical chassis must be connected to a proper electrical ground.
The control's internal circuit ground is connected to the AC safety ground (the green or
green/yellow wire in the AC line cord). The base of the chuck is to be grounded to this point,
as well as, through the ground wire of the DC chuck cable. All electrical chassis must be
safety grounded.
The chuck control's DC power output leads MUST BE SEPARATELY ROUTED from other
115V level power leads in the machine. They must not be routed in the same wire bundle with
400V or other high voltage leads. If the control has LOW VOLTAGE signal leads wire through
the machine, these MUST BE SEPARATELY ROUTED in their own SHIELDED WIREWAY
and the shield grounded to the machine chassis. Low voltage signals must not be routed with
high voltage or high power cables through any part of the machine, or electromagnetic
interference may result.
4.10 Control Output Voltage
The DC voltage for the magnet is connected across terminals 2 and 3 on J8. This voltage may
be measured across these terminals and can vary from 0-115VDC. It may also be measured
at the female DC output connector.