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Wieland podis
system
Manual V 1.03 / ref. no. 00.000.0059.0 / 28.03.2001
Line equation:
I = 0.0186 x dec + 0.267
dec = (I – 0.267) / 0.0186
(I = nominal current of motor, dec = decimal value)
Example
The nominal motor current is 2 A according to the
nameplate. The associated decimal parameter is 94.
Min. current 1 / Min. current 2
Adjustable value range (decimal) 0...180
Value range (physical variable)
Factory setting
The parameter "Min. current 1" or "Min. current 2" determines
the minimum setting for the motor current if a podis
device is switched on. This is used to monitor the motor
connecting cable (wire breakage, loose connecting plug).
A preset value > 0 activates this monitoring function. If the
podis
DRIVE device is triggered by the motor connecting cable
being removed, the error bit "MINCRRNT" is set in the input
range.
If the values are left at "Min. current 1 = 0" or "Min. current 2 =
0", no error message appears in the display or in the status byte
if the cable is removed or the motor is not connected when it is
switched on.
Nom. current 1 / Nom. current 2
Adjustable value range (decimal) 0...180
Value range (physical variable)
Factory setting
Recommended values:
Current value from nameplate of motor, conversion
according to diagram "Current as function of set digital
value" or relevant line equation
This parameter is used to monitor the motor current.
Disconnection time 1 / Disconnection time 2
Adjustable value range
Value range (physical variable)
Factory setting
Recommended values:
Motors up to 0.37 kW:
Motors up to 0.75 kW:
Motors > 0.75 kW:
Factor for the overcurrent protection is required to calculate the
2
I
t characteristic curve and the maximum current.
The trigger time for the protective device is influenced via the
parameter "Disconnection time" according to the diagram.
0 A...3.5 A
0
DRIVE
0 A...3.5 A
50
1...255
1...255
10
10...150
30...100
30...50
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