Walker Magnetics SMART-D SERIES - Manual (Page 11)

O.S. WALKER Co., Inc. SMART-D Control
SMART D MANUAL DD14511L Rev. L, March 30, 2011
3-2
Three conduits must be routed from the main chuck control enclosure; remote control
cable, AC input and DC output. Conduit sizing should be determined in accordance with
all NFPA/NEC, state and local regulations by the qualified person installing the system.
The remote control cable must be kept a minimum of six (6) inches from high voltage
cables such as the AC input. The DC output also must be kept at least six (6) inches
from high voltage AC wiring. Refer to Figure 3-1.
Figure 3-1 Chuck Control Enclosure
MAINTAIN A SIX (6) INCH SEPARATION BETWEEN PARALLEL RUNS OF REMOTE
CONTROL CABLE AND OTHER HIGH VOLTAGE WIRING.
3.1.3 Connecting the Chuck
The DC output to the chuck must include a ground wire that is connected to the safety
ground lug on the chuck and to the chassis of the chuck control. It is recommended that
the conduit for the DC output not be routed near high voltage AC wires. Many chucks are
installed on machines with moving tables. Choose a means of wiring the chuck that
allows adequate freedom of movement over the full range of table travel.
3.1.4 Connecting the AC Input voltage
The input transformer can be tapped for nine different input voltages; 208, 220, 230, 240,
380, 416, 440, 460 and 480 VAC. Refer to the transformer wiring diagram Figure 3-2 on
the following page.
Note: that there are two (2) primary and two (2) secondary out put windings.
3.1.5 575 Volt Controllers
The transformer installed in Controllers designed to operate on 575 volts AC have a
single primary winding. Refer to the transformer wiring diagram Figure 3-2 on the
following page.