Siemens simatic et 200s Operating Instructions Manual page 209

Control Signals: Inching
Address
Byte 0
Feedback Signals: Inching
Address
Byte 0
Bytes 1 to 3
Inching: Causes of Errors for POS_ERR
You must find out the causes of errors with JOB 15 (displays current values).
Error Number
2
5
7
13
ET 200S Positioning
Operating Instructions, 05/2007, A5E00124871-04
Assignment
Bits 0.7 to 0.4:
Bit 7 6
0 0
Bit 3: SPEED (SPEED = 0 is creep feed; SPEED = 1 is rapid feed)
Bit 2: DIR_M
Bit 1: DIR_P
Bit 0: START
Assignment
Bit 2: POS_ DONE
Bit 1: POS_ERR
Bit 0: POS_ACK
Actual value
(0 to encoder range - 1)
Cause
ERR_2L+ is displayed
The limit switch that lies in the
direction in which the drive is
moved is active
Inching: DIR_P and DIR_M = 1
Direction of rotation of the drive
and the encoder varies
5.6 Functions of the 1PosSSI/Digital
5 4
MODE 1 = Inching
0 1
What to Do
Check the load voltage (2L+) at terminal 15
Check your switches and the wiring as well as
the DI0 limit switch minus and DI1 limit switch
plus parameters
Check the wiring of the drive and the encoder
as well as the reversal of the direction of
rotation parameter
1PosSSI/Digital
209