Stober SD6 - Page 354

ID 442426.04 354WE KEEP THINGS MOVING
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15
Manual SD6
15.1.5.2 Control mode
15.1.5.2.1 B21 = 0: linear
Connected to X10, effective supply voltage.
The charge relay is controlled to ensure low wear depending on the current DC
link voltage and A36.
In control mode B20 = 64: SSM - vector control affects A36 the field weakening
mode. A limit value is derived from A36 . DC link voltages above this limit value
are not taken into consideration in field weakening mode to prevent oscillations
in the motor current.
Number of poles of a synchronous servo motor or asynchronous motor.
If the number of pole pairs is specified for third-party motors, the value must be
multiplied by 2 before it is entered.
Correlation between the number of poles, nominal speed n
N
in rpms and the
nominal frequency f
N
in Hz of the motor: B10 = 2·(f
N
· 60/n
N
).
Nominal current in A, as per rating plate.
Nominal voltage as per rating plate. For asynchronous motors note circuit type
(Y/∆)! Therefore make certain that parameters B11 ... B15 match!
Nominal frequency of the motor as per rating plate. Parameters B14 and B15
define the pitch of the V/f characteristic curve and thereby the characteristics
of the drive. The V/f characteristic curve determines the frequency (B15 f-
nominal) at which the motor is operated at nominal voltage (B14 V-nominal).
The voltage and frequency can be increased linearly beyond the nominal point.
The upper voltage limit is the supply voltage that is applied. STOBER system
motors up to size 112 offer the option of star/delta operation. Delta operation at
400 V makes it possible to increase output by a factor of 1.73 with an extended
adjusting range and at a constant torque. The motor requires additional current
in this connection variant. Make certain the following points are observed:
A36 mains voltage version 0
B53
n f
B23
B12
U
f
E05
V/f-
characteristic
Limit
B14 B15 B22 -A36 A36
E99
E98
PWM
E09
B24
Integrator
E07
E91
B10
M
B10 motor-poles version 0
B12 nominal motor current version 0
B14 nominal motor voltage version 0
B15 nominal motor frequency version 0