20 Start-up
If the direction of rotation is selected as forward, check
that the actual speed (01.08 Encoder1 speed / 01.10
Encoder2 speed) is 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
adjusting parameter 92.02 Exc signal ampl or 92.03 Exc
signal freq, and then setting parameter 90.10 Enc par
refresh to Configure. If the resolver is used with a
permanent magnet motor, an AUTOPHASING ID run
should be performed as well.
01.08 Encoder1 speed
01.10 Encoder2 speed
Stop the motor by pressing the STOP button.
Set parameter 19.02 Speed fb sel to Enc1 speed or Enc2
speed.
If the speed feedback cannot be used in motor control: In
special applications parameter 40.06 Force open loop
must be set to True.
19.02 Speed fb sel
Emergency stop circuit
If there is an emergency stop circuit in use, check that the
circuit is functioning (emergency stop signal is connected
to the digital input which is selected as the source for the
emergency stop activation).
10.13 Em stop off3 or
10.15 Em stop off1
(emergency stop control
through fieldbus 02.22 FBA
main cw, bits 2…4)
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