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3 VLT Automation VT Drive Selection
3.6.9 Analog I/O Option MCB 109
The Analog I/O card is supposed to be used in e.g. the following cases:
•
Providing battery back-up of clock function on control card
•
As general extension of analog I/O selection available on control card, e.g. for multi-zone control with three pressure transmitters
•
Turning frequency converter into de-central I/O block supporting Building Management System with inputs for sensors and outputs for operating
dampers and valve actuators
3
•
Support Extended PID controllers with I/Os for set point inputs, transmitter/sensor inputs and outputs for actuators.
Illustration 3.23: Principle diagram for Analog I/O mounted in frequency converter.
Analog I/O configuration
3 x Analog Inputs, capable of handling following:
•
0 - 10 VDC
OR
•
0-20 mA (voltage input 0-10V) by mounting a 510Ω resistor across terminals (see NB!)
•
4-20 mA (voltage input 2-10V) by mounting a 510Ω resistor across terminals (see NB)
•
Ni1000 temperature sensor of 1000 Ω at 0° C. Specifications according to DIN43760
Pt1000 temperature sensor of 1000 Ω at 0° C. Specifications according to IEC 60751
•
3 x Analog Outputs supplying 0-10 VDC.
86
MG.20.X1.22 - VLT
Remote Site Products - 1-888-532-2706 - www.remotesiteproducts.com
http://www.remotesiteproducts.com/p-20783-Danfoss-131X8145-VLT-Automation-VT-Drive-VFD-FC322-460V-.5-HP.aspx
Automation VT Drive FC322 Design Guide
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