ABB ACS860, Руководство по прошивке

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Program features 47
6. Set parameter 91.10 Encoder parameter refresh to Refresh to apply the new
parameter settings. The parameter will automatically revert to Done .
7. Check that 91.02 Module 1 status is showing the correct interface module type
( FEN-31 ). Also check the status of the module; both LEDs should be glowing
green.
8. Start the motor with a reference of eg. 400 rpm.
9. Compare the estimated speed ( 01.02 Motor speed estimated ) with the measured
speed ( 01.04 Encoder 1 speed filtered ). If the values are the same, set the
encoder as the feedback source ( 90.41 Motor feedback selection = Encoder 1 ).
10. Specify the action taken in case the feedback signal is lost ( 90.45 Motor feedback
fault ).
Example 1: Using the same encoder for both load and motor feedback
The drive controls a motor used for lifting a load in a crane. An encoder attached to
the motor shaft is used as feedback for motor control. The same encoder is also used
for calculating the height of the load in the desired unit. A gear exists between the
motor shaft and the cable drum. The encoder is configured as Encoder 1 as shown in
Configuration of HTL encoder motor feedback above. In addition, the following
settings are made:
• ( 90.43 Motor gear numerator = 1)
• ( 90.44 Motor gear denominator = 1)
(No gear is needed as the encoder is mounted directly on the motor shaft.)
•
90.51 Load feedback selection = Encoder 1
• ( 90.53 Load gear numerator = 1)
• 90.54 Load gear denominator = 50
The cable drum turns one revolution per 50 revolutions of the motor shaft.
•
( 90.61 Gear numerator = 1)
• ( 90.62 Gear denominator = 1)
(These parameters need not be changed as position estimate is not being used
for feedback.)
•
90.63 Feed constant numerator = 7
• 90.64 Feed constant denominator = 10
The load moves 70 centimeters, ie. 7/10 of a meter, per one revolution of the
cable drum.
The load height in meters can be read from 90.07 Load position scaled int , while
90.03 Load speed displays the rotational speed of the cable drum.

Jogging
The jogging function enables the use of a momentary switch to briefly rotate the
motor. The jogging function is typically used during servicing or commissioning to
control the machinery locally.