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RC2949 Relay Module

RC2949 Download PDF

SYSTEM 2000

SYSTEM 2000 is totally Australian designed and manufactured. Exclusive circuitry gives the RC2949 Relay Module all the features that has made this system an industry leader. The RC2949 Relay Module is part of the System 2000 control range. It can be fitted with up to four relay stages and can be used to extend a TC2000 from four to eight stages. Each of the relay stages has independently adjustable pull-in and drop-out voltages. Also each stage can be operated from a separate 0 - 10VDC signal if required.

Front Panel

Relay Setpoints & LED Display
The operation of the relay stages in the system are indicated by their respective LED’s and controlled by the potentiometers on the front panel. The pull in volts is set by the left potentiometer and the differential by the right potentiometer. When the relay is energised the LED is illuminated. The zero volts drop out feature prevents any relay from locking on if the differential voltage is set higher than the pull in volts. The internal circuitry will drop out the relay at 100mV. (The settings on the differential are in volts not in percentage of pull in volts.)

TECHNICAL DATA

SUPPLY VOLTAGE 240v ± 10%
24v ± 10%
POWER CONSUMPTION 2VA
AMBIENT TEMPERATURE
OPERATIONAL 0 to 50°C
STORAGE -20 to 60°C
AMBIENT HUMIDITY max 90% RH
ENCLOSURE Flame retardant ABS
WEIGHT max 0.2kg
SIZE H: 140mm
W
: 48mm
D: 170mm
RELAY OUTPUTS
SPDT CONTACTS - VOLTAGE FREE 250VAC 2.5A

Panel or Rear Mounting

All RC2949 Controllers are suitable for panel or rear mounting. Available in a white custom-made enclosure, the RC2949 can be mounted through the front panel of a switchboard to take full advantage of the digital display. Wiring is easy. The DIN rail (spring loaded clip system) supports the minimum of interconnections with all signal and high voltages at opposite ends.

Panel Mount Terminal Block

Internal Layout

Relay Card

The RC2949 relay cards have identical features:
1. Easy plug in replacement with expansion to 4 outlets.
2. 240VAC 2.5 amp ratings with voltage-free contacts.
3. Selection for operation of each relay stage on the D/A or R/A voltage signal.
4. Selection of each stage to operate as ON/OFF or TIME PROPORTIONAL basis with DIP switching. Relays 3 & 4 can be isolated from the internal D/A and R/A signal rails and operated through terminals 11 & 12 by an external 0-10VDC signal. The diagram shows the DIP switch positions.

Terminal Connectin Diagram

Model Numbering system

Dim Mounting Rail