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Starting up the FM 453
Checklist
Despite the "acceptance" testing just mentioned, the ultimate responsibility
for the accuracy of all machine data lies with the module user. So it is highly
advisable to perform startup using the following checklist.
Table 7-2
Parameterization Checklist
Step
Check
1
Machine data
Set initial machine data contents
As shown in Table 5-5 machine data are subdivided into configuration data (K)
and setting data (E). K data indicates how the FM 453 is connected to the ma-
chine axis or CPU user program, and must therefore already be fully set up
before startup begins. When specifying the MD52 (number of increments per
motor revolution) for step drives with adjustable increment number, select the
one with which your maximum frequency (at maximum axis speed provided)
reaches the next lowest value below the FM 453's maximum frequency of
1 MHz.
E data is intended for changes during startup, and serves to optimize FM 453
response for the technological process of positioning.
The values in Table 7-3 are recommended, and sometimes necessary, as initial
settings.
Initial machine data assignments for FM STEPDRIVE
To help you start up your machine axis with FM STEPDRIVE and the SIMOS-
TEP motors, you will find the MD DBs for open-loop control mode in the di-
rectory
SIEMENS\STEP7\EXAMPLES\FM_UPOS :
These machine MD DBs achieve optimum operation assuming
. You must optimize the machine data in accordance with the physical and tech-
nological conditions of your machine axis.
2
Increments
Increments are only needed for the "Relative incremental" mode. For the next
part of the startup procedure it is helpful to set up an "Increments" data block
(DB-SM) with the following values:
Value 1
Value 2
Value 3
Value 4
Value 5
with rotary axes:
Value 6
3
Tool offset data
Tool offset data is needed only for the "Automatic" mode and is not necessary
for the startup described here. Generally, it is not needed until you start up the
user program on the S7-400 CPU.
7-4
What to Do:
SIMOSTEP 2
si02_453.md
SIMOSTEP 4
si04_453.md
SIMOSTEP 6
si06_453.md
SIMOSTEP 10
si10_453.md
SIMOSTEP 15
si15_453.md
I
= I
Load
Mot
M
= 0.1 M
Load
Rated
–1
n
= 2 000 min
max
1 MSR
10 MSR
100 MSR
1,000 MSR
10,000 MSR
1 rotary-axis cycle (MSR)
MSR = measurement-system grid
FM 453 Servo Drive / Step Drive Positioning Module
C79000-G7076-C453-01
OK
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