
Parker EME
Setting up Compax3
192-120103 N13 C3I20T11 / C3I32T11 December 2010
187
Rotor time constant
If the value of the rotor time constant is not known, it can be approximated
automatically.
Determination of the commutation settings
On the last wizard page of the Compax3 MotorManager, the commutation settings
(feedback direction reversal and commutation direction reversal) can be
determined automatically.
Asynchronous motors: Extension of the controller structure
Structure of the magnetization current controller and determination of the
slip frequency:
Kp, T
N
-
2
3
/
ρ
j
e
Kp, T
N
-
Kp, T
N
T
R
-
i
mR
i
q
i
d
n
i
mR
ω
2
ε
2
ε
ρ
R
T
1
i
q
M
K
Acquisition of actual value
688.19 Actual current r.m.s.
(torque producing)
2240.4/7 Attenuation/bandwidth
magnetization current controller
2240.10
Rotor time constant T
R
2240.9
Slip frequency
2240.2 Demand value magnetization
current controller
2240.2 Demand current r.m.s.
(torque-producing)
Determination of the slip frequency
Magnetization current controller
2240.11
Reference speed