ABB ACSM1 Firmware Manual page 22

22
Enter a small speed reference value (for example 3% of the nominal
motor speed).
Start the motor.
Check that the estimated
speed (1.08 ENCODER 1 SPEED
equal. If the values differ, check the encoder/resolver parameter
settings.
Hint: If the actual speed (with absolute or pulse encoder) differs form the
reference value by a factor of 2, check the pulse number setting
COSINE NR /
If the direction of rotation is selected as forward, check that the actual
speed (1.08 ENCODER 1 SPEED
positive:
• If the actual direction of the rotation is forward and the actual speed
negative, the phasing of the pulse encoder wires is reversed.
• If the actual direction of the rotation is reverse and the actual speed
negative, the motor cables are incorrectly connected.
Changing the connection:
Disconnect the main power, and wait for 5 minutes for the intermediate circuit
capacitors to discharge. Do the necessary changes. Switch the power on and start the
motor again. Check that the estimated and actual speed values are correct.
• If the direction of rotation is selected as reverse, the actual speed
must be negative.
Note: Resolver autotuning routines should always be performed after
resolver cable connection has been modified. Autotuning routines can
be activated by setting parameter
EXC SIGNAL
REFRESH to
permanent magnet motor, an AUTOPHASING ID run should be
performed as well.
Stop the motor.
Set parameter
ENC2 SPEED.
If the speed feedback cannot be used in motor control: In special
applications parameter
TRUE.
Note: Speed filtering needs to be adjusted especially when the
encoder pulse number is small. See section
25.
Start-up
(1.14 SPEED
93.01 ENC1 PULSE NR
FREQ, and then setting parameter
(1) CONFIGURE. If the resolver is used with a
22.01 SPEED FB SEL
40.06 FORCE OPEN LOOP
ESTIMATED) and actual
/ 1.10 ENCODER 2
/ 93.11 ENC2 PULSE
/ 1.10 ENCODER 2
92.02 EXC SIGNAL AMPL
90.10 ENC PAR
to (1) ENC1 SPEED
must be set to
Speed filtering
1.14 SPEED
ESTIMATED
SPEED) are
1.08 ENCODER 1
SPEED
1.10 ENCODER 2
SPEED
(91.01 SINE
NR).
1.08 ENCODER 1
SPEED
SPEED) is
1.10 ENCODER 2
SPEED
or 92.03
or (2)
22.01 SPEED FB SEL
on page
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