D-140
A p p e n d i x D : P r o g r a m m i n g
AC890PX AC Drive
Functional Description
The SLEW RATE LIMIT block obtains the setpoint from the output of the application, correctly scaled by the REFERENCE block. The rate of
change limits are applied and the setpoint is then passed on for further processing.
When the braking block determines that the internal dc link voltage is too high it issues a Hold signal. This causes the SLEW RATE LIMIT block to
hold the setpoint at its current value. This typically lasts for only 1ms, time for the excess energy to be dumped into the dynamic braking resistor.
SETPOINT
DECEL LIMIT
ACCEL LIMIT
HOLD SIGNAL
NOTE
If the drive is part of a common DC link/bus system set the ENABLE parameter to FALSE. This disables ramp-hold during
deceleration on high link volts feature.
Содержание AC890PX Series
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Страница 12: ...1 4 C h a p t e r 1 G e t t i n g S t a r t e d AC890PX AC Drive...
Страница 17: ...C h a p t e r 2 P r o d u c t O v e r v i e w 2 5 AC890PX AC Drive 890PX bottom wire entry...
Страница 22: ...2 10 C h a p t e r 2 P r o d u c t O v e r v i e w AC890PX AC Drive...
Страница 74: ...4 8 C h a p t e r 4 A s s o c i a t e d E q u i p m e n t AC890PX AC Drive...
Страница 96: ...5 22 C h a p t e r 5 O p e r a t i n g t h e D r i v e AC890PX AC Drive...
Страница 162: ...8 22 C h a p t e r 8 T r i p s F a u l t F i n d i n g AC890PX AC Drive...
Страница 170: ...9 8 C h a p t e r 9 R o u t i n e M a i n t e n a n c e R e p a i r AC890PX AC Drive...
Страница 286: ...D 84 A p p e n d i x D P r o g r a m m i n g AC890PX AC Drive Functional Description...