Precision Circuits Inc
System:
The Power Control System (PCS) consists of two major components: 1.PCS Central Monitor Panel &
2. PCS Panelboard for 50amp service.
The Panelboard may optionally have a subpanel built in.
a. The Panelboard also houses the PCS Control Module, and has two current sensors
Power Control System Central Monitor Panel
Load Status
Water Heater OFF11A Refrigerator ON 7A Block Heater OFF12A
Central Monitor Panel
Overview:
The Power Control System (PCS) Panelboard distributes all the 120VAC power throughout the RV, whether it comes from Shore Power, Generator, or the Inverter. The PCS Control monitors the incoming power, and manages the power to reduce Circuit Breaker tripping. It does this by momentarily shedding power to the loads under its control when the owner turns on other more critical appliances in the RV. PCS restores power when the owner controlled appliance is turned off. The PCS Central Monitor Panel displays the status of Incoming Power, and the Controlled Loads.
When coupled with a Magnum Inverter, PCS reduces Battery Charge Rate prior to shedding any loads. Working together, an Inverter Assist feature is available. Normally the Inverter is at rest when Shore Power is available. PCS utilizes the Inverter and the Coach Battery Bank to smooth out Peak Load Demands. In other words the Inverter will temporarily provide power to some of the appliances, prior to shedding any loads.
Features:
l Monitor and Manage total RV current to avoid nuisance circuit breaker tripping. l Manage power no matter what the source:
50-amp Service, Generator, 30-amp Service, 20-amp Service.
l Manage battery charging during high peak demands.
l Provide Inverter-Assit, additional power from battery bank to smooth high peak demands. l Shed non-critical loads during high peak loads.
l Remote Panel displays Service Type, Load Status, and RV Current & Voltage.
l Generator Soft Start
DANGER: 120/240VAC present inside Panelboard posing potential
lethal electrical shock. This equipment should only SUPPLY BEFORE WORKING INSIDE. be serviced by a qualified Service Technician.
HAZARD OF ELECTRICAL SHOCK OR BURN. TURN OFF POWER
700 South Road Lisle, IL 60532
www.PrecisionCircuitsInc.com 630-240-9832
Inverter Assist Feature:
PCS works with the MAGNUM Energy Inverter/Charger to bring the RV industry a revolutionary new concept. In the past, energy management systems operated when 120VAC was available and inverters operated when 120VAC was not available from either shore power or generator.
The Power Control System brings these two worlds together.
First PCS will communicate with the Magnum Inverter/Charger and reduce Battery Charge Rate during periods of RV high current demands.
While plugged into shore power, or when the generator is running, the PCS will allow the RV to have more power than available on the shore power or generator, for short periods of time. When the PCS senses that 120VAC power has reached its maximum current, the PCS communicates to the MAGNUM inverter requesting additional power be generated from the battery. If more demands are put on the RV with additional appliances, or with the RV batteries are low, the PCS will shed non-critical loads and avoid nuisance tripping of circuit breakers.
Generator Soft Start:
When the Generator is first turned on, PCS will shed all the controlled loads. The loads are sequenced back on. This is done to allow the generator to come up with minimum load, and to reduce the current the Transfer Switch must handle. Note: PCS applies the same 2 minute delay to turning loads on is when Power Management Load Shedding occurs.
RV Data Parameters:
The RV manufacturer has full flexibility to set up the RV Data Parameters through a Windows Program and Program Dongle. The following parameters are downloaded into each PCS system.
Load Names, Load Shed Order, Load-Relay Association, Generator Size, Inverter Information.
These parameters can not be set or changed by the dealer or owner. Each RV Data Set has a unique 18- character Reference ID, where the first digits are the manufacturer's code, the last digits are the revision date, and the remaining middle characters have some model designation.
RV Data Synchronization:
The RV Data Parameters are stored in both the PCS Central Monitor Panel and the PCS Control. Should dealer or field replacement of either
unit become necessary, a blank unit can be installed and the RV Data will be synchronized or transferred from remaining Unit. During Power-Up the Monitor
and Controller check their RV Data and one of four screens can appear.
1. Everything is Synchronized and the Monitor Version, Controller Version, and Ref 2 ID are displayed.
2. RV Data is transferred from Controller to Monitor
3. RV Data is being transferred from Monitor to Controller
4. RV DATA in Monitor and Controller is different and the PCS System can not continue. This can happen for example if a Monitor from one RV is installed in a different model RV.
If for any reason the Controller stops to function, no problem with the Limp Home Feature, all Controlled Loads will continue to operate. Care will have to be used not to turn on too many appliances, overload the system, and trip breakers.
1
Monitor -->> Controller Upload
3
4
Controller -->> Monitor Upload
! RV Data Mismatch ! Ctl v3.06 Mon v3.07 C-FRCHARLESTON052107 M-FW42&45STNRD022207
700 South Road Lisle, IL 60532
www.PrecisionCircuitsInc.com 630-240-9832
PrecisionCircuits Monitor Vers. 3.07 Control Vers. 3.06
FW42&45STNRD022207