ZIEHL-ABEGG ZETADYN 3C, Оригинальная инструкция по эксплуатации

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15.8.3.3 Slip-compensation
With asynchronous motors the slip (difference between synchronous speed and asynchronous
speed) is proportional to the load of the motor and therefore porportional to the motor current. This
leads to different travel speeds in upwards and downwards direction with the same load.
Example:
The nominal speed of a motor is 1430 rpm. With empty car in downwards direction the speed is
1430 rpm. In upwards direction the speed is 1570 rpm.
The difference of 140 rpm will be settled by the slip-compensation.
The slip-compensation will be activated with the parameter
Controller/s_COMP=On
.
Control
|
- "
s_COMP On
|
-
"
On
U/F: Slip compensation
Functionality:
The motor current is recorded by a
fi
lter (parameter "s_FIL"). Proportional to the measured motor
current:
• the slip-frequency will be added or subtracted to the output frequency of the U/f-characteristic curve
• voltage will be added dto the output voltage of the U/f-characteristic curve
The additional values of the slip-compensation will be limited by following parameters:
Control
|
- "
s_LIM 5 Hz
|
- "
5
U/f:Slip limitation
Frequency: parameter
"s_LIM"
Control
|
- "
U_S_MX 80 V
|
- "
80
U/f:Maximum output
volt.
Voltage: parameter
"U_S_MX"
The slip-compensation depends on the paremeter "FADE1" and "FADE2".
f < FADE1:
If the frequency of the rotating
fi
eld in the stator is less than "FADE1" the slip-compensation is
switched off.
f > FADE2:
If the frequency of the rotating
fi
eld in the stator is greater than "FADE1" the slip-compensation is
activated 100 %.
FADE1 < f < FADE2
If the frequency of the rotating
fi
eld in the stator is between "FADE1" and "FADE2" the slip-compensa-
tion depends on the characteristic curve: the higher the frequency the higher the slip-compensation.
The characteristic curve is de
fi
ned by the values for "FADE1" and "FADE2".
Thereby a seamless transition from current-control to slip compensation and backwards is existing.
S_COMP
FADE1
f
100 %
FADE2
Fader-function with slip-compensation
Original operating instructions
ZETADYN 3C
Special functions
R-TBA08_03-GB 1619 Part.-No. 00163322-GB
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