Four Channel Digital Input Multiplexer – VFC input
IOD4
£39.00
Description
The Digital Input Expander allows 4 volt free inputs to be monitored by a single analogue input channel. The resultant analogue value can be decoded by the A to D function module in an BMS controller to produce internal digital status bits for alarm monitoring or other status input applications.
Specification
Supply Voltage: 24Vdc or ac ± 15%
Supply Current: 50mA max. (I mode)
30mA max. (V mode)
Input Channels: 4-volt free contact switch 24Vdc
Input Threshold: Upper 17.5V max (ON) level
Lower 7.5V min (OFF) level
Distance: Max. distance of IOD4 from controller 25m (V mode)
1000m (I mode).
Output: Mode selectable by link header current/voltage (I/V).
I: 0 to 20mA, max. resistance of load 250Ω.
V: 0 to 10Vdc, max. current 1mA.
LED: Single LED per input channel, LED on indicates contact
closed.
Ambient limits: Storage: -10℃ (14 °F) to +70℃(158 °F)
Operating: -10℃ to +50℃
Humidity: 0 to 90%RH non- condensing
| Weight | 81 g |
|---|