20.9.3. CAN bus interface
Galvanically separated
Maximal CAN bus length 200m
Speed 250kBd
Nominal impedance 120
Cable type twisted pair (shielded)
Following dynamic cable parameters are important especially for maximal 200 meters CAN
bus length and 32 iS-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
Recommended Industrial Automation & Process Control Cables:
BELDEN (see http://www.belden.com):
3082A DeviceBus for Allen-Bradley DeviceNet
3083A DeviceBus for Allen-Bradley DeviceNet
3086A DeviceBus for Honeywell SDS
3087A DeviceBus for Honeywell SDS
3084A DeviceBus for Allen-Bradley DeviceNet
3085A DeviceBus for Allen-Bradley DeviceNet
3105A Paired EIA Industrial RS485 cable
LAPP CABLE (see http://www.lappcable.com)
Unitronic BUS DeviceNet Trunk Cable
Unitronic BUS DeviceNet Drop Cable
Unitronic BUS CAN
Unitronic-FD BUS P CAN UL/CSA
20.10. Analog outputs
Speed governor output 10 V DC / 5 V PWM (500 – 3000Hz),
max. 15 mA
AVRi outputs PWM to IG-AVRi
Current output 0 – 20 mA 0,3mA
Voltage output 0 – 10 V DC, max. 15 mA
Max load resistance 470R at 9,4V
20.11. IG-AVRi
Power supply: 18V AC from IG-AVRi Trans/LV or IG-AVRi
Trans/100
Absolutely maximum power supply range: 15 - 25 VAC
Inputs: +AVR, -AVR (two wires, PWM from IG-CU)
Outputs: OUT1, OUT2 floating (potential free) voltage
source.
AVRi output voltage range: potentiometer adjustable from +- 1V to +-10V
DC.
AVRi output current: max 15 mA.
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