556 Appendix A - ACS380 in crane applications
Signals:
09.06
Crane speed reference
Warnings: -
Faults: -
Step reference speed selection/Pendant control
In step reference, you can select speed between four step reference speeds. A
pendant controller is commonly used with the step reference logic.
The figure below shows a pendant controller.
To activate a pendant control/step control, set parameter
22.21
Constant speed
function
, bit 2 to 1. The polarity of the references depends on the direction in which
the end-user gives the start command using digital inputs (
20.03
and
20.04
)
The table below shows how the control program determines which step reference
speed is used. To activate the subsequent speed step, the previous speed step must
be retained.
Typically, for the step reference logic, parameters are set as follows:
22.21
Constant
speed
function
22.22
Constant
speed sel1
22.23
Constant
speed sel2
22.24
Constant
speed sel3
Used reference
1
0
0
0
22.26
Constant speed 1
1
1
0
0
22.27
Constant speed 2
1
1
1
0
22.28
Constant speed 3
1
1
1
1
22.29
Constant speed 4
1
0
1
1
22.26
Constant speed 1
1
1
0
1
22.27
Constant speed 2
1
0
0
1
22.26
Constant speed 1
1
0
1
0
22.26
Constant speed 1
No.
Name
Value
22.21
Constant speed function
0b0100 (Bit 2 = 1)
22.22
Constant speed sel1
DI3
22.23
Constant speed sel2
DI4
22.24
Constant speed sel3
Always off
22.26
Constant speed 1
300.00
ACS380 FW.book Page 556 Friday, May 4, 2018 4:18 PM
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