Starting A Seek-Reference-Point Traverse; Types Of Seek-Reference-Point Mode - Siemens SIMATIC FM 351 Installation Manual

Operating Modes and Settings
Table 9-3
Start Direction is...
positive
positive
negative
negative
Starting
Sequence
9
9-8
Take note of the following table. It shows you the four types of seek-refer-
ence-point mode.

Types of Seek-Reference-Point Mode

The first zero mark after leaving the reference-point switch in positive direction.
The first zero mark after leaving the reference-point switch in negative direction.
The first zero mark after leaving the reference-point switch in positive direction.
The first zero mark after leaving the reference-point switch in negative direction.
1I2; 2I2
Start DIR_P,
DIR_M
JP_REF
WORKING
WAIT_EN
v
v
Figure 9-2 Starting a Seek-Reference-Point Traverse
For Synchronization use...
rapid
creep
s
FM 351 Positioning Function Module
EWA 4NEB 720 6001-02