Engaging/Disengaging Actions Catch-Up; Catch-Up - Siemens Simovert Masterdrives Compendium

Master value source
Position setpoint
U606 (0)
Master axis
("master value")
U600
.01(7031)
KK 0
.02 (0)
KK 1
.03 (817)
KK 2
V setpoint [%]
Master axis
<1>
("master val")
for precontrol
.04 (0)
KK 0
.05 (0)
KK 1
.06 (0)
KK 2
U600 <>0
Q. Add.offset M.
<2>
U460
.01 (0) [LU]
KK
.02 (0) [%]
KK
U888 specifies the direction of the position difference of the master
value during synchronization.
1.) Sign of the position difference of the master value is
being processed
(U888.01 input value = 0) AND (U888.02 input value = 0)
(U888.01 input value = 1) AND (U888.02 input value = 1)
2.) Positive position differences of the master value expected
(U888.01 input value = 1) AND (U888.02 input value = 0)
3.) Negative position differences of the master value expected
(U888.01 input value = 0) AND (U888.02 input value = 1)
<1> The position setpoint master axis must be wired up. Optionally,
the speed setpoint can also be used to increase the accuracy
of the speed precontrol. The position setpoint and speed
source must match.
Example: Virtual Master
U600.3 = KK0817 [LU]
U600.6 = KK0820 [%]
Example: Real Master
U600.2 = KK0608 [LU]
U600.5 = KK0624 [%]
<2> Here give preference to wiring of source module "Additive
Offset" [794]
U460.1 = KK0835 [LU]
U460.2 = KK0832 [%]
KK7031 = Double word 1 of SIMOLINK [150]
KK0817 = Position of virtual master axis [820]
KK0816 = Speed of virtual master axis [820]
KK0608 = Position of real master [833]
KK0624 = Speed of real master [833]
1 2
Technology Option
Synchronism - engaging/disengaging actions catch-up
Master axis cycle length
> 0: Rotary axis length [in LU]
= 0 : Linear axis
Master [1000 LU/min]
U601 (4096) [ACL_M]
+
t
d
dt
+
see sheet [834a/834b/834c]
U888
B 0.1 (0)
B 0.2 (0)
Input
engaging/disengaging
[834a-c.1]
Disengaging
see sheet [834a/834b/834c]
see sheet [837]
Input

catch-up

[837.1]
3
Synchronism operating mode 0...3
Scaling rate
Abs. master
setpoint [LU]
0...20 000 000.00
n655.5
U607.2 (0)
LU
sampling time
0
Scaling
1
n653.5
V master setpoint [%]
Engaging
Output
engaging/disengaging
[834a-c.8]
Catch-up
U607.2 [834.4]
0
Output
catch-up
[837.8] 0
If catch-up mode is selected,
the catch-up on FD 836.2 is inactive.
4 5
V2.5
(valid for sheet [834] ... [843],
U602 (0)
recommended value: U953.33 = 4)
[OPERATION]
see also [831.3]
U656 (0)
0.1 (804)
B0804 B
0.2 (805)
B0805 B
2 1 2 0
Continuous operation
0
Starting operation
1
Stopping operation
2
Catch-up
3
6 7
Function diagram
fp_mc_834_e.vsd
MASTERDRIVES MC
03.03.08
U953.33 = ___(20)
Speed setpoint[%]
n653.4
[835.1]
n655.4
Position setpoint [LU]
current sync. mode
0 ... 3
n658
8
- 834 -