Installation Leaflet
Page 18 Effective: April 2003
Pow-R-Command 100
IL01412003
For More Information visit www.cutler-hammer.com
APPLICATION EXAMPLE 5: DIMMING
APPLICATIONS WITH THE SOC
All the PRC100 Controllers have similar
capabilities for input, output and functions.
The following application will demonstrate
connections for both manual and automatic
dimming of florescent fixtures.
The figure shows the major components
required for manual and automatic dimming
control. These components are shown
attached to the SOC but the same control
can be applied to the USC and other ASC’s.
Certain parameters must be entered into the
system to compensate for the different
characteristics of the devices. For example
the PLC photo sensors have different FC
ranges but all have 1 to 5 Volt signals. The
conversion to percent or units would be
determined at the time of start-up. With the
connections shown here control strategies
such as Lumen Maintenance, Daylight
Harvesting, and manual control as well as
manual control to a variable set point can
be accomplished through programming the
controller database. It is imperative that the
sensor type associated with each input be
provided to the Cutler-Hammer engineer for
proper start-up and operation of the
dimming controls.
PLC MULTIPOINT® SENSOR NOTES.
The CES series of sensors have different
input ranges but are normalized to a 1 to 5
volt output. While these relationships are
adjustable at the sensor it is probably better
to make any adjustment using the control-
lers built-in type definitions. The CES Series
sensors are supplied from the factory with
the following calibrated ranges.
CES®/I
0 to 100 FC = 1 to 5 V
CES/O
0 to 250 FC = 1 to 5 V
CES/A
2 to 1000 FC = 1 to 5 V
CES/S
10 to 2000 FC = 1 to 5 V
The adjustable Maximums for these
sensors are:
CES/I
5 to 750 FC
CES/O
5 to 750 FC
CES/A
200 to 2500 FC
CES/S
1000 to 7500 FC
LEVITON IP710-DLW
The LED provided in this switch is hard-
wired internally as a night-light. This switch
is intended for connection to a 120 V AC
circuit and thus it uses a small amount of
leakage to illuminate the LED when the lights
are off. When using this device with a PRC
controller it is limited to where it can be
connected. Connecting this device to any of
the DIGITAL INPUTS (DI 9, 10, 11, 12) will
cause improper operation of the input due to
this leakage. The Digital Inputs provide
sufficient whetting voltage to cause the LED
to conduct and thus the circuit will never
open. For this reason the Leviton switch will
only function when connected to the
Universal Inputs (Analog Inputs 1 – 8) or
wired to the Control Cabinet, Expansion
Chassis or Relay Panel switch termination
blocks. In either case the LED will not
illuminate and is unusable for this
application.
Figure 4-20: Application Example SOC Switch Inputs
SOC
BLK
RED
WHT
Cutler-Hammer
016-4092
Dimming Cable
Yellow To Lamps
Red VIO-CV
BLK GRA - COM
40 Ballasts Max
Red - Power
BLK - COM
YEL - Signal
BLK - AC Supply
WHT
Advance Transformer
MARK VII®
RED To Lamps
BLUE
PLC Multipoint
CES/I-1/5
CES/O-1/5
CES/A-1/5
CES/S-1/5
GRA - COM
VIO - Variable
BLK - Switched
RED - Switch COM
BLK - Switched
Leviton IP710 -DLW
