Eaton PRC-E Series User Manual

4
Controller overview
PRC-E Series Instruction Manual MN014003EN August 2015 www.eaton.com
Figure 4. PRC-E Series Front Panel

Power switch—controls the main low voltage control
power to PRC controller

Status LEDs
 Top LED (green): Diagnostic LED—this LED cycles
once per second, indicating that the controller is in
normal operation. If not illuminated or illuminated
constantly, the processes are not running within
the controller
 2nd LED (yellow): Override LED—this LED indicates
that a number of loads have been overridden within
the controller. If this LED is lit, some or all of the circuit
breakers cannot be controlled using groups, schedules,
or inputs. The override must be terminated to release
the loads for control
 3rd LED (red): BCB and External Power LED—this LED
indicates the presence of power supplied to the BCB
and external devices. If this LED is not illuminated,
check the “External” fuse in the low voltage wiring
area of the PRC-E Series controller
 4th LED (red): Internal power LED—this LED indicates
the presence of internal power to the controller. If this
LED is not illuminated, check the “Internal” fuse in the
low voltage wiring area of the PRC-E Series controller
(see Figure 3 on page 3)
PRC-E Series Externally Mounted
Controller Cabinet
Externally mounted controllers
PRC-E externally mounted controllers are available for
retrofit and renovation projects when existing panelboards
do not have required controller mounting space. Externally
mounted controllers include controller, control power
transformer mounted in a NEMAT 1 enclosure. The PRC-E
externally mounted controller is connected to PRC Expansion
Panelboards using the controller SLAN sub-network.
Figure 5. PRC-E Series External Control Cabinet
Eaton Pow-R-Line 1a and 2a lighting panelboards can
be converted to Pow-R-Command Expansion (PRCEP)
panelboards in the field by mounting Breaker Control
Bus (BCB) and controllable circuit breakers directly to
the interior.
Eaton supplies custom panelboard covers and trims with
standard Pow-R-Line 1a and 2a panelboard interiors for
retrofitting directly into existing panelboard boxes when
installed electrical distribution equipment is from another
manufacturer. This retrofit option reduces the need for
disrupting existing conduits and wire while reducing overall
installed cost.
Field wiring connections are discussed in the Field Wiring
Termination topic on page 5. Field wiring termination
discusses connection of power, communications, and
control wiring. Additional application information can be
found in low voltage wiring application examples later in
this document (see page 9).
Figure 6. PRC-E Series Externally Mounted Controller
Cabinet with Four PRCEP Panelboards
Maintenance Port
Power Switch
Status LEDs
PRCEP
PRCEP
PRCEP
PRCEP
PRCEP

Eaton PRC-E Series Specifications

General

Brand	Eaton
Model	PRC-E Series
Category	Control Unit
Language	English