VLT
®
5000 FLUX
■ Handling of single references
Using a single reference, only one active reference
signal is connected, either in the form of an external
or in the form of a preset (internal) reference.
The external reference can be voltage, current,
frequency (pulse) or binary via the serial port. Two
examples are given below of the way the single
references are handled by the frequency converter.
Exter-
nal
Speed or torque reference
term 53 (±10 V)
term 54 (±10 V)
term 60 (0/4 - 20 mA)
term 17 or 29 (frequency)
RS 485
Single ref
Preset references (parameter 215 -
218)
Example 1:
External reference signal = 1 V (min) - 5 V (max)
Reference = 20 - 1500 rpm
Configuration (parameter 100) - Speed control,
closed loop.
Example 2:
External reference signal = 0 V (min) - 10 V (max)
Reference = 1500 rpm ccw - 1500 rpm cw
Configuration (parameter 100) - Speed control,
closed loop.
MG.55.A6.02 - VLT is a registered Danfoss trademark
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