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9.1.1
Control signals
Overview
The axis is operated and controlled by means of control signals.
Table 9-1 describes the control signals and their functions.
Table 9-1
Control signals
Symbol
English
German
TEST_EN
TFB
OT_ERR_A BFQ/
FSQ
START
ST
STOP
STP
DIR_M
R−
DIR_P
R+
ACK_MF
QMF
READ_EN
EFG
SKIP_BLK
SA
FM 353 Stepper Drive Positioning Module
6ES7 353-1AH01-8BG0
Name
Name
Sw./over
Interrupts communication with the user program, and switches over
P-bus
the P bus interface for operation with the start-up user interface.
interface
Ack-
... resets an error message. Before acknowledging the error, correct
nowl.
its cause.
opera-
tor/
travel
error
Start
... starts movement in "Automatic", "MDI" and "Reference-point ap-
proach" modes.
Stop
... interrupts movement or processing of the program
... cancels reference point approach.
Direc-
... moves axis in negative direction.
tion mi-
S
In Jogging and Control modes, moves axis in negative direction
nus
(level-dependent).
S
Starts movement in negative direction in Incremental relative and
Reference-point approach modes.
S
Specifies direction of movement for rotary axes in MDI and Auto-
matic modes.
Direc-
... moves axis in positive direction.
tion plus
S
In Jogging and Control modes, moves axis in positive direction
(level-dependent).
S
Starts movement in positive direction in Incremental relative and
Reference-point approach modes.
S
Specifies direction of movement for rotary axes in MDI and Auto-
matic modes.
Ac-
... only "acknowledge-driven" during M function output (see machine
knowl-
data list in Table 5-4, MD32).
edge M
... acknowledges receipt of M function. Program sequence can be
function
continued.
Read-in
... prevents read-in (processing) of the next block
enable
... has effect only in Automatic mode.
The read-in enable is required in order to read in the next traversing
block during program execution.
Skip
... skips identified blocks in the program
block
... has effect only in Automatic mode.
Description of Functions
Function
Function
9-3
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