Rockwell Automation 160 Series C Firmware - Manual (Page 2)

2 160 Series C Custom Firmware
Accel/Decel Selection
In addition to the two standard accel/decel times, a third set of
programmable accel/decel times has been added. None of these times
will be associated with the Preset Frequency parameters in the
standard drive. Instead, two other parameters will set the frequency
points where the different accel/decel times will be in affect (refer to
the
Table B ).
Table B
Accel/Decel Parameters
If P80 - [Mid to High Crossover] is less than P73 - [Low to Mid Crossover],
then P80 will be ignored and P67 - [Mid Accel] & P68 - [Mid Decel] will
be used for all frequencies above P73. If P73 is equal to zero, P30 -
[Low Accel] & P31 - [Low Decel] will not be used. See the following
diagram.
Parameter
Number
Parameter Name Min./Max./Default Description
P30 Low Accel 0.0/600.0/10.0 Sec Accel used when frequency is
below first crossover point (P79).
P31 Low Decel 0.1/600.0/10.0 Sec Decel used when frequency is
below first crossover point (P79).
P67 Mid Accel 0.0/600.0/20.0 Sec Accel used when frequency is
between first & second crossover
points (P79 & P80).
P68 Mid Decel 0.1/600.0/20.0 Sec Decel used when frequency is
between first & second crossover
points (P79 & P80).
P69 High Accel 0.0/600.0/30.0 Sec Accel used when frequency is
above second crossover point
(P80).
P70 High Decel 0.1/600.0/30.0 Sec Decel used when frequency is
above second crossover point
(P80).
P73 Low to Mid Crossover 0/240/30 Hz First frequency crossover point
used to determine which accel/
decel rate will be used.
P80 Mid to High Crossover 0/240/60 Hz Second frequency crossover
point used to determine which
accel/decel rate will be used.
P30
P31
P73
P67
P68 P69
P70
Frequency
P80