ComAp IG-NT, Installation Manual

Page: 142 / 149

IGS-NT Installation Guide
142
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.