IMO Precision Controls Jaguar VXS, Руководство пользователя

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Output frequency can be restricted by setting
high and low limits.
If the low limit is set to a value above that of
the high limit, the high limit has priority and
the low limit is ignored.
If the high limit is set higher than the maxi-
mum frequency Function 03, the maximum
frequency has priority.
The setting range is 0 to 400Hz in steps of
1Hz.
When induction motors are lightly-loaded,
instability can occur due to torque pulses corre-
sponding to the ‘dead time’ of the inverter
IGBTs. Output current can be controlled to
compensate for this effect by modifying the
gain of an internal damping factor. This has
the effect of altering the overall motor charac-
teristics computed and recorded by the inverter.
To compensate for instability, set Function 38
lower if the motor has more than 4 poles,
higher if the loading is low.
The factory-set default is 5.
Function data settings can be restored to their
original factory-set defaults.
To change the setting, select Function 39. The
display will show 0. Press the STOP and
∧
keys simultaneously; the display will change
to 1. The press the FUNC/DATA key to acti-
vate the initialisation.
ΝΟΤΕ
All custom data will be lost. Refer
to page 20.
An output can be taken from either terminal
FMA or terminal FMP, but not both simulta-
neously.
0 = FMA terminal selected (analog output).
Factory-set default. Refer to Function 41.
1 = FMP terminal selected (digital output).
Refer to Function 42.
Refer also to Function 09.
0 = Inverter output frequency. Factory-
set default.
FMA V% =
Output frequency
x 100
Function 03 (max. freq.)
1 = Motor current
FMA I% =
Output current
x 100
Inverter rated current x 2
2 = Motor torque
FMA M% =
Output torque
x 100
Inverter rated torque x 2
3 = Load factor
If output frequency
≤
base frequency:
Display 100% =
Output torque x 100
Inverter rated torque x 2
If output frequency > base frequency:
Display 100% =
Output (A) x 100
Inverter rated output (A) x 2
Refer also to Function 09.
34
38 Output current stability
Function 38 =
Motor
characteristic Poles
12 2
0
10
Function 38 =
Motor
load Load
High Low
0 10
39 Data initialisation
40 Terminals FMA/FMP selector
41 Terminal FMA function
36 Frequency limiter — high
37 Frequency limiter — low
Output
Hz
Reference
Function 36
Function 37
Function 03