Siemens SIMATIC FM 453, Manual

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9-27
FM 453 Servo Drive / Step Drive Positioning Module
C79000-G7076-C453-01
The table below gives you an overview of how to handle this mode.
Triggering of Movement Type of Movement
Start
as defined by “MDI block”
(job no. 6)
“MDI block on-the-fly” transmitted
to the FM 453
as defined by “MDI block on-the-
fly” (job no. 16)
Note
Please see also Section 9.1.3!
Preconditions:
S
The FM 453 has been parameterized.
S
The mode has been selected and confirmed
S
Drive enable [AF] = 1 (control signal, FC MODE_WR)
S
Stop [STP] = 0 (control signal, FC MODE_WR)
S
Servo enable (RF) = 1 (FC MODE_WR, job no. 10)
S
Axis is synchronized
Table 9-7 Control Actions for “MDI” mode (examples)
Signal Name Level Explanation
Control action 1, define position
Transfer MDI block (job no.
6)
Control signal:
Start [ST]
Checkback signals:
e.g. Travel plus [FR+]
Start enable [SFG]
Processing in progress [BL]
e.g. Travel plus [FR+]
Processing in progress [BL]
Position reached, stop [PEH]
When the MDI block has been transferred, [ST] can be initi-
ated.
The axis cancels the [SFG] and outputs messages [BL] and
[FR+]
When the defined position has been reached, the axis enables
[PEH]; [SFG] and checkback signals [FR+] and [BL] are
reset.
Handling by the
User
Control Actions
Description of Functions