Commissioning
821XKlimaBA0399
5-11
4.Set slip compensation
(C021):
Rough setting by means of the motor data:
4.Set slip compensation
(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.
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Summary of Contents for 8210 HVAC Series
Page 52: ...Commissioning 5 14 821XKlimaBA0399 Show Hide Bookmarks...
Page 62: ...Commissioning 5 24 821XKlimaBA0399 Show Hide Bookmarks...
Page 64: ...During operation 6 2 821XKlimaBA0399 Show Hide Bookmarks...
Page 78: ...Configuration 7 14 821XKlimaBA0399 Show Hide Bookmarks...
Page 84: ...Troubleshooting and fault elimination 8 6 821XKlimaBA0399 Show Hide Bookmarks...
Page 88: ...Accessories 9 4 821XKlimaBA0399 Show Hide Bookmarks...
Page 92: ...Index 10 4 821XKlimaBA0399 Show Hide Bookmarks...
Page 93: ...Index 821XKlimaBA0399 10 5 Show Hide Bookmarks...
Page 94: ...Index 10 6 821XKlimaBA0399 Show Hide Bookmarks...