1PosSSI/Digital
5.6 Functions of the 1PosSSI/Digital
ET 200S Positioning
Operating Instructions, 05/2007, A5E00124871-04
231
Feedback Messages
Address Assignment
Byte 0 Bit 7: ERR_ENCODER
Bit 3: SYNC
Bit 2: POS_ DONE
Bit 1: POS_ERR
Bit 0: POS_ACK
Byte 4 Bit 7: ERR_2L+
Bit 1: JOB_ERR
Bit 0: JOB_ACK
Causes of Errors for POS_ERR
Table 5-1 Causes of Errors for POS_ERR
Error Number Cause Remedy
1 MODE unknown Permissible MODEs are:
• MODE 0
• MODE 1
• MODE 3
• MODE 4
• MODE 5
2 ERR_2L+ is displayed Check the load voltage (2L+) at terminal 15
3 ERR_ENCODER is displayed Check the encoder wiring
4 The axis is not synchronized (SYNC=0) Eliminate the encoder error.
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 ≥ encoder range
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
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