Siemens SIMATIC ET 200S - Table 7-3 Causes of Errors for POS_ERR

1PosUniversal/Digital
7.6 Functions of the 1PosU
ET 200S Positioning
Operating Instructions, 05/2007, A5E00124871-04
365
Causes of Errors for POS_ERR
Table 7-3 Causes of Errors for POS_ERR
Error Number Cause Remedy
1 MODE unknown Permissible MODEs are:
• MODE 0
• MODE 1
• MODE 3 (not possible at SSI encoders or in
dosing operation)
• MODE 4
• MODE 5 (not possible in dosing operation)
2 ERR_2L+ is displayed Check the load voltage (2L+) at terminal 7
3 ERR_ENCODER is displayed Check the encoder wiring
4 The axis is not synchronized (SYNC=0) SSI encoder:
• Eliminate the encoder error.
The axis can be synchronized at incremental
encoders and non-activated dosing operation
with:
• Search for Reference
• Reference Signal Evaluation
• Setting of Actual Value
5 The limit switch that lies in the direction in which
the drive is moved is active
Check your switches and the wiring as well as the
DI0 limit switch minus and DI1 limit switch plus
parameters
7 Inching: DIR_P and DIR_M = 1
Absolute positioning:
Start with DIR_P and DIR_M = 0 or relevant
control bit DIR_P or DIR_M = 0
Relative positioning:
Start with DIR_P and DIR_M = 0 or DIR_P and
DIR_M = 1
8 Absolute positioning :
Destination ≥ end of rotary axis at incremental
encoders or destination ≥ encoder range at SSI
encoders
9 Absolute positioning was terminated because
JOB 9 was initiated
10 Search for reference: Reference point coordinates
≥ end of rotary axis
11 Search for reference:
No reference signal found up to the limit switch or
between the limit switches
Check your switches, the encoder and the wiring
13 Direction of rotation of the drive and the encoder
varies
Check the wiring of the drive and the encoder as
well as the reversal of the direction of rotation
parameter
15 Inching, relative positioning:
In dosing operation DIR_M = 1