SEW-Eurodrive MOVIPRO ADC, Operating Instructions Manual

Page: 166 / 244

9
Operation
Relative cyclic duration factor (cdf)
Operating Instructions – MOVIPRO
®
ADC
166
INFORMATION
• For operating modes with encoder feedback, parameters must not be changed in
cycles faster than 2 seconds. This ensures that the encoders are initialized.
• The maximum output frequency in the VFC operating modes without encoder
feedback is 150 Hz.
• The maximum output frequency in the V/f operating mode and all operating
modes with encoder feedback is 599 Hz.
• If the maximum output frequency is exceeded, error 08 "Speed monitoring" is dis-
played.
9.1 Relative cyclic duration factor (cdf)
The cyclic duration factor (cdf) is the ratio between the period of loading and the cycle
duration. The cycle duration is the sum of times of operation and times at rest and de-
energized. The typical value for the cycle duration is 10 min.
cdf
total time of operation t t t
cycle duration T
=
+ +
·
( )
( )
%
1 2 3
100
27021597976207755
9.2 Duty cycles
9.2.1 Duty type S1
Continuous duty: Operation with a constant loading condition, the motor achieves a
thermal steady state.
P, ϑ
ϑ
max
S1
P
ϑ
t
2325833867
22749055/EN – 04/2016