Program features 105
Reference types and processing
The drive can accept a variety of references in addition to the conventional analog
input and control panel signals.
• The drive reference can be given with two digital inputs: One digital input
increases the speed, the other decreases it.
• The drive can form a reference out of two analog input signals by using
mathematical functions: Addition, subtraction, multiplication and division.
• The drive can form a reference out of an analog input signal and a signal received
through a serial communication interface by using mathematical functions:
Addition and multiplication.
• The drive reference can be given with frequency input.
It is possible to scale the external reference so that the signal minimum and
maximum values correspond to a speed other than the minimum and maximum
speed limits.
Settings
Diagnostics
Parameter Additional information
Group 11: Reference select External reference source, type and scaling
Group 20: Limits Operating limits
Group 22: Accel/Decel Speed reference acceleration/deceleration ramps
Group 32: Supervision Reference supervision
Actual signal Additional information
0111/0112 REF1/REF2 reference
Group 03: FB actual signals References in different stages of the reference
processing chain
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