Inching (Mode 1) - Siemens simatic et 200s Operating Instructions Manual

7.6.5

Inching (MODE 1)

Definition
You use inching mode to control the drive directly in a particular direction using the DIR_M or
DIR_P control bits.
If you start MODE 1, the 1PosU moves the drive at the preset speed (SPEED control bit) in
the specified direction (control bit DIR_M or DIR_P).
You stop the drive by setting the control bits DIR_P = 0 and DIR_M = 0.
A change of direction is executed after the time T
You can also activate inching on an unsynchronized axis (feedback bit SYNC = 0) or when
there is a pending encoder error (feedback bit ERR_ENCODER = 1) or without an encoder
connected.
START
DIR_P
DIR_M
SPEED
POS_ACK
POS_DONE
POS_ERR
SYNC
Rapid feed
Creep feed
Figure 7-9
ET 200S Positioning
Operating Instructions, 05/2007, A5E00124871-04
Execution of Inching
1PosUniversal/Digital
7.6 Functions of the 1PosU
elapses.
min
Path
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