Our Products - Controllers

IC2947 Interface Module

SYSTEM 2000

SYSTEM 2000 is totally Australian designed and manufactured. Exclusive circuitry gives the IC2947 Interface Module all the features that has made this system an industry leader. The IC2947 Interface Module is part of the System 2000 control range. It is an accessory module that accomplishes Hi-Select, Lo-Select, Sequencing and Reversing of 0 - 10VDC control signals. The IC2947 can be fitted with up to four relay stages.

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
Operating 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
Output Deviation Voltage D/A 0 to 10VDC 10mA
Relay Outputs
SPDT Contacts - Voltage Free 250VAC 2.5A

Panel or Rear Mounting

All IC2947 Controllers are suitable for panel or rear mounting. Available in a white custom-made enclosure, the IC2947 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 IC2947 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.

Input Card

The Interface Module incorporates high or low select functions, sequencing and/or reversing of the output signal. There are eight high select inputs or eight low select inputs. DIP switch 1 selects either HI or LO. Sequencing is accomplished with the zero and span pots. E.G. If a 3 - 6vdc signal is required to be expanded to 0 - 10vdc, then apply a 3vdc signal and adjust the Zero pot until the output is zero. Then apply a 6vdc signal and note that the output the output is now 3vdc. Adjust the Span pot until the output is 10vdc. If the output signal is required to be reversed, then Dip Switch 2 is set to RA.