122 Program features
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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