Vacon 10 PFC, Руководство пользователя

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P
ARAMETER DESCRIPTIONS VACON
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10
GROUP 2. Advanced PFC settings
2.1 W
ORK PRESSURE
2
By enabling digital input DI2, you can work with the pressure inserted in this
parameter.
2.2 A
CCELERATION
Acceleration time from OHz to maximum frequency.
2.3 D
ECELERATION
Deceleration time from maximum frequency to OHz.
2.4 PI
CONTROLLER GAIN
This parameter defines the gain of the PI controller. If this parameter is set to
100%, a 10% change in the error value results in a 10% change in controller
output.
2.5 PI
CONTROLLER
I -
TIME
This parameter defines the integration time of the PI controller. If this param-
eter is set to 1.00 second, controller output changes by a value corresponding
to the output caused by the gain every second. (Gain/Error)/s.
2.6 PID
ERROR VALUE INVERSION
This parameter enables users to invert the PID controller error value (and
therefore PID controller operations).
0 = Not inverted
1 = Inverted
2.7 A
UTOCHANGE
I
NTERVAL
After the time set by this parameter has elapsed, autochange takes place if
the load used is less than the level set in parameters P2.9 (autochange inter-
val limit) and 2.8 (Maximum number of auxiliary pumps). If the load exceeds
the value in parameter 2.9, autochange will not occur until the load is below
this limit.
• Timing is enabled only if Start/Stop request is activated.
• Timing is reset after autochange takes place or when the Start request is re-
moved.
2.9 A
UTOCHANGE
:
INTERVAL LIMIT
These parameters set the maximum load for autochange to take place. This
level is defined as follows:
• Autochange can take place if the number of auxiliary pumps running is lower
than the value in parameter 2.89, autochange may take place.