234 Parameters
Acc/Dec time 2 1. 1
DI1 Digital input DI1 (10.02 DI delayed status, bit 0). 2
DI2 Digital input DI2 (10.02 DI delayed status, bit 1). 3
DI3 Digital input DI3 (10.02 DI delayed status, bit 2). 4
DI4 Digital input DI4 (10.02 DI delayed status, bit 3). 5
DI5 Digital input DI5 (10.02 DI delayed status, bit 4). 6
DI6 Digital input DI6 (10.02 DI delayed status, bit 5). 7
Reserved 8…19
EFB Only for the DCU profile. DCU control word bit 10 received
through the embedded fieldbus interface.
20
Other [bit] Source selection (see Terms and abbreviations on page 144). -
28.72 Freq acceleration
time 1
Defines acceleration time 1 as the time required for the
frequency to change from zero to the frequency defined by
parameter 46.02 Frequency scaling. After this frequency has
been reached, the acceleration continues with the same rate
to the value defined by parameter 30.14 Maximum frequency.
If the reference increases faster than the set acceleration
rate, the motor will follow the acceleration rate.
If the reference increases slower than the set acceleration
rate, the motor frequency will follow the reference.
If the acceleration time is set too short, the drive will
automatically prolong the acceleration in order not to exceed
the drive torque limits.
20.000 s
0.000…1800.000 s Acceleration time 1. 10 = 1 s
28.73 Freq deceleration
time 1
Defines deceleration time 1 as the time required for the
frequency to change from the frequency defined by
parameter 46.02 Frequency scaling (not from parameter
30.14 Maximum frequency) to zero.
If there is any doubt about the deceleration time being too
short, ensure that DC overvoltage control (30.30 Overvoltage
control) is on.
Note: If a short deceleration time is needed for a high inertia
application, the drive should be equipped with braking
equipment such as a brake chopper and brake resistor.
20.000 s
0.000…1800.000 s Deceleration time 1. 10 = 1 s
28.74 Freq acceleration
time 2
Defines acceleration time 2. See parameter 28.72 Freq
acceleration time 1.
60.000 s
0.000…1800.000 s Acceleration time 2. 10 = 1 s
Freq deceleration
time 2
Defines deceleration time 2. See parameter 28.73 Freq
deceleration time 1.
60.000 s
0.000…1800.000 s Deceleration time 2. 10 = 1 s
28.76 Freq ramp in zero
source
Selects a source that forces the frequency reference to zero.
0 = Force frequency reference to zero
1 = Normal operation
Inactive
Active 0. 0
Inactive 1. 1
DI1 Digital input DI1 (10.02 DI delayed status, bit 0). 2
DI2 Digital input DI2 (10.02 DI delayed status, bit 1). 3
DI3 Digital input DI3 (10.02 DI delayed status, bit 2). 4
No. Name/Value Description Def/FbEq16
ACS580 FW.book Page 234 Wednesday, September 21, 2016 9:48 PM
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