ID-DCU-MARINE-2.2.2, ©ComAp – June 2015 - 161 -
ID-DCU-MARINE-2.2.2.pdf
Frequency inputs
Not electrically separated
Number of inputs 2
Freq range 0 to 8 kHz
Input impedance > 10 k
Minimum input voltage 2 Vpk-pk (from 4 Hz to 4 kHz)
Maximum input voltage 50 Veff
Impulse inputs
Not electrically separated, designed for active NPN open collector sensors.
Number of inputs 2
Freq range 0 to 60Hz
Min pulse duration 1 ms
Input impedance 4 k
ON input voltage < 0,8 V
OFF input voltage > 4,2 V
R
ON
max 1 k
Maximum input voltage 40 V
Analog outputs
Not electrically separated
Number of outputs 3
Output range AOUT1, AOUT2 0 to 10 VDC
0 to 20 mA ± 0,33 mA
Output range AOUT3 ± 10VDC
± 10VDC via 10k
Pwm (1200Hz / 5V, 10 mA max)
ID-SCM1
Power supply: internal supply from ID-DCU MARINE (8 to 36 VDC)
Operating temperature range: -40°C to +70°C
Number of analog outputs: 1, no galvanic separation
Analog output refreshment: 100 ms
Analog output options
a) pwm 1600 Hz (fix), 5V level, max 10 mA
b) 0 to 10VDC ± 1%, 10 k output resistance
c) 0 to 10VDC ± 1%, max 5 mA (voltage output)
CAN bus interface
Maximal CAN bus length
Basic setting: CAN bus mode = 250 kBd 200m
Basic setting: CAN bus mode = 50 kBd 900m
Nominal impedance 120
Cable type twisted pair (shielded)
Following dynamic cable parameters are important especially for maximal 200 meters CAN bus length and
32 ID-COM units connected:
Nominal Velocity of Propagation min. 75% (max. 4,4 ns/m)
Wire crosscut min.0,25 mm
2
Maximal attenuation (at 1 MHz) 2 dB / 100m
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