4-32 Description of Diagnostic Messages F… and E… ECODRIVE03-SGP-03VRS
DOK-ECODR3-SGP-03VRS**-WA01-EN-P
E253 Target position out of travel range
In operation modes with drive controlled interpolation, the drive checks
before the move whether the specified S-0-0258, Target position, is
within the possible travel range of the drive. This range is defined by the
parameters S-0-0049, Positive position limit value and S-0-0050,
Negative position limit value. The position limit check is activated in the
parameter S-0-0055, Position polarities with bit 4.
Cause:
The target position lies beyond the position limits, and the position limit
check is activated.. The motion profile results in a target position greater
than the maximum allowed position.
Results:
• This warning message, E253, appears.
• The drive stops.
• The drive does not accept the target position or the process block.
• In S-0-0012, Class 2 diagnostic warning bit 13 is set.
Remedy:
• For the Drive controlled interpolation mode, input the S-0-0258, Target
position only within the position limits.
• Don’t input moves which are greater than the maximum allowed
position minus the current position.
• In positioning-sequence operating mode always set S-0-4006,
Command Targetposition smaller than the maximum allowed
position.
• The same holds for Relative Positioning commands, where the sum of
the commanded positions + the start position should be less than the
maximum allowed position.
• Check the position limit values. Moreover, the positive position limit
value must be greater than the negative position limit value.
• If you don’t need the position limit check, de-activate it, e.g. in modulo
mode.
See also the functional description: "Mode: Drive Internal Interpolation".
E254 Not homed
If "absolute positioning" is selected while in the operation mode "position
block", the control drive must be homed to a reference position. If this is
not the case, an absolute position cannot be reached. The drive rejects
this positioning command and stops. The warning E254 will be given.
Cause:
Absolute positioning was selected without the drive being referenced.
Remedies:
1. Do the homing (referencing) command with the drive or
2. do only relative positioning.
See also the function description "Drive-Controlled Homing".