4B Watchdog Super Elite, Operation Manual, Page: 57 / 76

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Image 34
Edit Selected Profile -
Expansion Board Settings
Expansion 1 [NTC]
Expansion 2 [NTC]
Image 34 illustrates the expansion board settings screen. In this example, NTC expansion boards have
been programmed into EXPANSION 1 and 2. Each expansion board type has its own abbreviation code
as listed below:
1. [NTC] - NTC Board
2. [SSR] - PLC Board
3. [6AN] - Analog Board (6 Inputs)
4. [2AN] - Analog Board (2 Inputs)
5. [Pt100] - Pt100 Board
PAGE 57
• 14.10.E ANALOG BOARD (2AN) - The analog board (WDC4-AUXI-2AN) provides the ability to
connect 2 current loop inputs (CLI1 - CLI2) for 0 to 20 mA sensors to measure current. Settings for
the CLI inputs are similar to the ANALOG BOARD (6AN), refer to 14.10.D for setup details.
• 14.10.F Pt100 BOARD
- Pt100 board (WDC4-AUXI-4Pt100) provides the ability to connect a total of
4 Pt100 type temperature sensors to the WDC4. The board has 12 terminal connections allowing for
2 wire or 3 wire sensor configurations (see expansion board manual for wiring diagrams).
If EXPANSION 1 is selected, Pt100 temperature settings for Pt100 1 - Pt100 4 will be available. If
EXPANSION 2 is selected, Pt100 settings for Pt100 5 - Pt100 8 will be available. The menu default
setting is OFF, so each individual sensor must be turned ON and configured (see temperature
sensors - section 14.8).