ComAp InteliDrive DCU Industrial - 7.2 CAN bus interface

InteliDrive DCU Industrial 3.4.0 Global Guide
95
Voltage measurement tolerance ± 1 % ± 1 mV out of measured value
Current measurement tolerance ± 1 % ± 0.5 mA out of measured value
Group 2 AI5 – AI8
Number of inputs 4 bipolar
Resolution Up to 16 bits
Jumper selectable range V, Ω, mA, thermo coupler
Maximal resistance range 2500 Ω
Maximal voltage range ± 1000 mV or 100 mV or 5 V
Note: The maximal input voltage offset is in the range from –2 to +5 VDC against controller minus power supply
when AI5 to AI8 is used for differential voltage measuring.
Maximal current range
± 0 – 20 mA active
0 – 20 mA passive
Input impedance 50 Ω for mA measuring
Input impedance >100 kΩ for V measuring
Resistance measurement tolerance ± 0.5 % ± 2 Ω out of measured value
Voltage measurement tolerance ± 0.5 % ± 1 mV out of measured value
Current measurement tolerance ± 0.5 % ± 0.5 mA out of measured value
Maximal distance 10 m
Speed 19.2 kBd
RS232 interface
7.2 CAN bus interface
Max. CAN bus length
Basic setting: CAN bus mode
= 250 kBd
200m
Basic setting: CAN bus mode
= 50 kBd
900m
Nominal impedance 120Ω
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 / 100m