Commissioning
821XKlimaBA0399 5-11
4.Set slip compensation
Rough setting by means of the motor data:
(C021):
s
n
rsyn
n
r
n
rsyn
ô
100%
n
rsyn
f
dr
ô
60
p
s Slip constant (C021)
n
rsyn
synchronous motor speed [min
-1
]
n
r
rated speed to motor nameplate [min
-1
]
f
dr
rated frequency to motor nameplate [Hz]
p Number of pole pairs
Precise setting:
Change C021 under constant load until the speed is near the synchronous speed.
If C021 is set to too high values, the drive may become instable (overcompensation).
Important
-
The change from V/f-characteristic control to motor-current control should only be
carried out when the controller is inhibited.
-
The idle current of the motor (magnetizing current) must not exceed the rated
current of the controller.
-
With very small friction values it is possible that an angle offset of up to 180
occurs when enabling the controller.
To Next Page
Loading...