NOTICE
Terminal 27 digital input
has
[2] Coast inverse
as default setting. If
there is no 24 V to terminal 27, [Hand On] does not start
the motor. If so, connect terminal 12 to terminal 27.
4.
When sweeping through a resonance band, press
[OK] on the LCP when leaving the band. The
actual frequency is stored as the first element in
parameter 4-63 Bypass Speed To [Hz]
(array).
Repeat this procedure for each resonance band
identified at the ramp-up (maximum of 3 can be
adjusted).
5.
When maximum speed has been reached, the
motor automatically begins to ramp down.
Repeat this procedure when speed is leaving the
resonance bands during the deceleration. The
actual frequencies registered when pressing [OK]
are stored in
parameter 4-61 Bypass Speed From
[Hz]
.
6.
When the motor has ramped down to stop, press
[OK]. The
parameter 4-64 Semi-Auto Bypass Set-up
automatically resets to
off
. The frequency
converter stays in hand on mode until [Off] or
[Auto On] is pressed.
If the frequencies for a certain resonance band are not
registered in the right order (frequency values stored in
parameter 4-63 Bypass Speed To [Hz]
are
≥
the values in
parameter 4-61 Bypass Speed From [Hz]
), or if they do not
have the same numbers of registrations for the
parameter 4-61 Bypass Speed From [Hz]
and
parameter 4-63 Bypass Speed To [Hz]
, all registrations are
canceled and the following message is shown:
Collected
speed areas overlapping or not determined. Press [Cancel] to
abort
.
4-64 Semi-Auto Bypass Set-up
Option:
Function:
[0]
*
Off
[1]
Enable If this option is selected, speed ranges are automat-
ically swept to identify bands of resonances.
Parameters
Programming Guide
MG03N202
Danfoss A/S © 11/2015 All rights reserved.
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