Specification
15
3.6 INPUTS
3.6.1 DIGITAL INPUTS
Number
11 configurable inputs. A future firmware update to the controller
will enable an additional input. Check with DSE Technical Support
for further details.
Arrangement Contact between terminal and ground
Low level threshold 2.1 V minimum
High level threshold 6.6 V maximum
Maximum input voltage +50 V DC with respect to plant supply negative
Minimum input voltage -24 V DC with respect to plant supply negative
Contact wetting current 7 mA typical
Open circuit voltage 12 V typical
3.6.2 ANALOGUE RESISTIVE INPUTS
3.6.2.1 OIL PRESSURE
Configurable if engine ECU link provides oil pressure measurement
Measurement type Resistance measurement by measuring voltage across sensor
with a fixed current applied
Arrangement Differential resistance measurement input
Measurement current 15 mA
Full scale
240 Ω
Over range / fail
270 Ω
Resolution 0.1 Bar (1 PSI -2 PSI)
Accuracy
±2 % of full scale resistance (±4.8 Ω) excluding transducer error
Max common mode voltage ±2 V
Display range 13.7 bar (0 PSI - 200 PSI) subject to limits of the sensor
3.6.2.2 COOLANT TEMPERATURE
Configurable if engine ECU link provides coolant temp measurement
Measurement type Resistance measurement by measuring voltage across sensor with
a fixed current applied
Arrangement Differential resistance measurement input
Measurement current 10 mA
Full scale
480 Ω
Over range / fail
540 Ω
Resolution
1 °C (2 °F)
Accuracy
+/-2 % of full scale resistance (±9.6 Ω) excluding transducer error
Max common mode voltage ±2 V
Display range
0 °C -140 °C (32 °F - 284 °F) subject to limits of the sensor
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