Specifications

• DOK-DIAX01-MAIN+2AD+1M-ANW1-EN-E1,44 • 07.97
68
Limiting with parameter or
analogue voltage
Para-Spitzenwert
Parameter protocol!
☞
Parameter
A05
P6
P16
Designation
FUNCT 1
MD-RED
PQ-FUNCT
Function
torque and power limits if
control input MD-RED is at 1
only torque limit with control input
MD-RED at 1
per cent value of peak torque
torque limit via voltage at analogue input
X4 ( E3/E4 ): ±10V = 100% = peak torque
Value range or value
< 0 >
< 1 >
1....99
< 32 >
S R Q
S R Q
( % )
control units
Spitzenwertbegrenzung
Legend:
1 = +24V
0 = 0V
= signal step
= any control
state
^
^
^
^
27
23
24
25
26
28
29
30
31
32
33
34
35
36
37
3
1
1
POS 2
E-STOP (RAC only)
RF
RUN
POS 1
MD-RED
OSCILATE
PAR 1
PAR 2
LIMIT 1
LIMIT 2
LIMIT 4
SPEED 1
SPEED 2
EXT POS
AS (KDA/TDA only)
1
0
X2 control inputs
1
analogue
voltage
0 to ±10V
X2 signal output
8 90% LOAD
5 (E3)
6 (E4)
4
X4 analogue input
1 = activation of
limitation
^
0 = 90% of the current possible
maximum load has been achieved
±10V = 100% (no limit)
± 8V = 80% (limit to 80%)
etc.
^
^
^
3. Controller Functions
Changeover capability of the
limiting mode and values
In the simplest case, the amount of limiting is stored as a per cent in the
switchable parameter records. One value is possible per parameter
record.
If several limiting values are required within the parameter records, then
the limiting value can also be input as a voltage of the analogue input.
In both cases, limiting is activated via the MD-RED control input. To
avoid speed dips, the drive monitors the utilization. If the utilization has
reached 90% of the current possible maximum value, then the "90%
LOAD" output switches from 1 to 0!
Figure 55: Control and analogue inputs, signal output for peak value limiting
Figure 56: Parameter for peak value limiting
As the "MD-RED" and "PQ-FUNCT" parameters occur several times,
both types of limiting can be used via relevant parameters or by switching
parameter records, without interrupting the operation of the drive.