Siemens SIMATIC FM 353 Manual page 204

Description of Functions
Table 9-1 Control signals, continued
Symbol
English German
DRV_EN AF
MODE_IN BA
MODE_ BP
TYPE
OVERRIDE OVERR
9-4
Name
Name
Drive ... enables movement.
enable
When the signal is reset, a deceleration of the movement takes
place.
If MD 37.15 = 0, program execution or the movement is aborted and
the distance to go deleted.
If MD 37.15 = 1, the following applies (machining resumed after
emergency stop):
S
Rapid deceleration of the movement.
S
On axis standstill FR+ or FR− = 0; BL = 1
the drive remains activated and Servo Enable active
S
If an error occurs in this state (e.g. the user starts the movement
without a Start Enable, etc.), the relevant error response is initi-
ated, e.g. the distance to go is deleted; BL = 0 (a new path must
be specified).
Operat- Operating mode (see Section 9.2) Code
ing Jogging
mode Open-loop control
Reference point approach
Incremental relative
MDI
Automatic
Automatic single block
Mode ... selects speed levels in Jogging mode
parame-
... selects frequency levels in Control mode
ter
... selects increment in Incremental relative mode (value 1 − 100 or
254).
Override ... affects response of traversing movement. Range: 0-255%
... override has no effect in Control mode
S
Velocity override
Range: 0-255%
Speed adjusted by percentage
Example: Override doubled from 100% to 200%
200 %
100 %
− speed v is doubled
− acceleration and deceleration values are not affected
The positioning time is not cut in half.
Function
Function
01
02
03
04
06
08
09
v
v
act
v
Override
prog
v =
act
100
FM 353 Stepper Drive Positioning Module
v
prog
t
6ES7 353-1AH01-8BG0