20 Start-up
If the direction of rotation is selected as forward, check
that the actual 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
or
, and then setting parameter
. If the resolver is used with a
permanent magnet motor, an AUTOPHASING ID run
should be performed as well.
Stop the motor by pressing the STOP button.
.
If the speed feedback cannot be used in motor control: In
special applications parameter
must be set to
.
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).
or
(emergency stop control
through fieldbus
, bits 2…4)
Summary of Contents for ACS850 series
Page 1: ...ACS850 Firmware Manual ACS850 Standard Control Program...
Page 2: ......
Page 4: ......
Page 24: ...24 Start up...
Page 28: ...28 Control locations and operating modes...
Page 252: ...252 Fieldbus control...