Installation Leaflet
Page 13 Effective: April 2003
Pow-R-Command 100
IL01412003
For More Information visit www.cutler-hammer.com
3)
Analog outputs
– These points can
be used for either digital or analog
control. The output is 0-20mA source to
the common on the connector. A resistor
between the output and the common
converts the output to 0-5VDC or
0-10VDC. When used as a digital output,
the output switches between 0 and
20mA. The digital output could be used
for a pilot lamp or LED. With an external
sensitive pilot relay (12VDC coil at less
than 20mA), the digital output could be
used to drive a control relay or contactor.
The output is defined at start up for the
desired function and conversion to
engineering units.
4)
Digital outputs
– These points on the
application specific controller provide for
low voltage digital control for external
relays or contactors. The application
specific controller may be ordered with
either pilot relay or triac outputs. The
triac output version switches 24VAC
while the pilot relay version can switch
24VDC or 24VAC. The outputs are
defined at start-up as normally open or
closed and maintained or pulsed. The
pilot lamp digital outputs on an SOC
controller provide a 24VDC (half-wave
rectified) signal intended for driving
switch pilot lamps.
4-5 Low-Voltage Wiring Application
Examples
The following application examples
represent connecting real equipment to the
PRC100 controllers. References to
Manufacturers and their part numbers are
for reference only and in no way imply sole
usage. Use these examples as guides for
design, layout and specifying components.
Examples, as shown, require
corresponding parameters be entered into
the respective controllers database before
operation can be realized.
NOTE: The devices referenced in the
following figures are for illustration
purposes only. Refer to each
manufacturers’ installation literature for
proper field wiring.
IT IS ABSOLUTELY IMPERATIVE THAT THE
CONNECTED EQUIPMENT PARAMETERS
(e.g. Signal Type, Signal Range, Terminal
Connections) BE PROVIDED TO THE START-
UP ENGINEER. THIS INFORMATION ALONG
WITH THE DESIRED OPERATION STRATEGY
IS IMPERATIVE TO RELIABLE AND PREDICT-
ABLE FUNCTION.
Figure 4-15: SOC Pilot Lamp Digital Output
Figure 4-14: 24VAC Relay or Contactor
Figure 4-13: 24VAC Load Control
