Initial Contents Of Machine Data - Siemens SIMATIC S7-300 Manual

Note
The measurement system (MD7) must match the measurement system speci-
fied in the other DBs.
The measurement system raster (MSR) is the smallest distance unit in the
active system of measurement.
If at some point you have failed to take this precaution:
1. Delete all data blocks (which do not match the measurement system) or
2. Modify the other data blocks on the PG.
3. Reload the data blocks to the FM 354.
Initial contents of The table below shows you what initial contents are recommended or re-
MD quired for the E machine data at startup of the machine axis.
Enter the machine data in the tab windows or in table format in accordance
with the following table.
Table 7-3

Initial contents of machine data

MD (E) Value
5 0
9 9
16 –10 ...+10 [MSR]
17 0
9 9
21/22 –10 /+10 [MSR]
1) 8
23 v = 10...5 10 (MSR/min)
max
24 1 000 [MSR]
25 0
26 10 000 [MSR]
27 0
28 0.2 v
max
29 0.1 v
max
30/31 0/0
38 1 000 [MSR/min/MSR]
39 0
3
40/41 1 000/1 000[10 MSR/s
42 0
FM 354 Servo Drive Positioning Module
clear the memory of the FM 354 completely.
FM 354 triggers no process interrupts
Specified reference-point coordinates
Absolute encoder readjustment value (absolute encoders only). En-
tered automatically when the reference point of the FM 354 is set.
Software limit switches inactive
Specified maximum axis speed
Large PEH target range
PEH time monitoring switched off
Zero speed range monitoring set to default value
(If the "zero speed range" monitoring error occurs during the start–up,
as described in Section 7.3, please enter the maximum value of 1 000
000 deviating from the default. You then define the value required for
your true drive axis in Section 7.3.6)
Reference-point shift (incremental encoders only) should be entered
for numerical readjustment of the reference point
20% of the maximum speed is the recommended initial value
10% of the maximum speed is the recommended initial value
Backlash compensation inactive
Generally applicable position control loop gain
Following-error monitoring inactive
2
] Very low acceleration values
Jolt filter switched off
Starting up the FM 354
Explanation
7-5