Danfoss VLT HVAC Drive FC 100 Series, Руководство по конструкции

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Figure 3.9 Connection to 24V Backup Supplier (A5-C2).
3.1.9 Analog I/O option MCB 109
The Analog I/O card is supposed to be used, e.g., in the
following cases:
•
Providing battery backup 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 Adjustable frequency drive into de-
central I/O block supporting Building
Management System with inputs for sensors and
outputs for operating dampers and valve servos.
•
Support extended PID controllers with I/Os for
setpoint inputs, transmitter/sensor inputs and
outputs for servos.
Figure 3.10 Principle diagram for Analog I/O mounted in
Adjustable frequency drive.
Analog I/O configuration
3 x analog inputs, capable of handling following:
•
0–10V DC
OR
•
0–20mA (voltage input 0–10V) by mounting a
510
Ω
resistor across terminals (see NB!)
•
4–20mA (voltage input 2–10V) by mounting a
510
Ω
resistor across terminals (see NB)
•
Ni1000 temperature sensor of 1000
Ω
at 32°F
[0
°
C]. Specifications according to DIN43760
•
Pt1000 temperature sensor of 1000
Ω
at 32°F
[0
°
C]. Specifications according to IEC 60751
3 x analog outputs supplying 0–10V DC.
VLT
®
HVAC Drive Selection VLT
®
HVAC Drive Design Guide
3-6 MG11BB22 - VLT
®
is a registered Danfoss trademark
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