Trane TR200 Series Programming Manual page 88

Semi-Automatic Bypass Speed Set-up
The Semi-Automatic Bypass Speed Setup can be used to facilitate the programming of the frequencies to be
skipped due to resonances in the system.
The following process is to be carried out:
1. Stop the motor.
2. Select Enabled in par.4-64
Hand On
3.
Press on the keypad to start the search for frequency bands causing resonances. The motor will
ramp up according to the ramp set.
4.
When sweeping through a resonance band, press
frequency will be stored as the first element in par.4-62
To [Hz] (array). Repeat this for each resonance band identified at the ramp-up (maximum four can be ad-
justed).
5. When maximum speed has been reached, the motor will automatically begin to ramp-down. Repeat the
above procedure when speed is leaving the resonance bands during the deceleration. The actual frequen-
cies registered when pressing
Speed From [Hz].
6. When the motor has ramped down to stop, press
ically reset to Off. The frequency converter will stay in
keypad.
If the frequencies for a certain resonance band are not registered in the right order (frequency values stored in
By Pass Speed To
are higher than those in
By Pass From
registrations for the
Collected speed areas overlapping or not completely determined. Press [Cancel] to abort
is displayed:
4-64 Semi-Auto Bypass Set-up
Option:
[0] * Off
[1] Enabled
TR200 Programming Guide
Semi-Auto Bypass Set-up.
OK
OK
will be stored in par.4-60
OK
. The par.4-64
By Pass Speed From
By Pass To
and , all registrations will be cancelled and the following message
Function:
No function
Starts the Semi-Automatic Bypass set-up and continue with the proce-
dure described above.
Parameter Description
on the keypad when leaving the band. The actual
Bypass Speed To [RPM]
Bypass Speed From [RPM]
Semi-Auto Bypass Set-up
Hand Off Auto On
mode until or
) or if they do not have the same numbers of
or par.4-63 Bypass Speed
or par.4-61 Bypass
will automat-
are pressed on the
.
87