5
2.3 Setting Datum/Reference
Datum can be set in a variety of ways. The method is selected in Register
R8/3
R8 = XX0XXX – Datum to R7
With activating the external input
ST3 Pin 8
(X- Axis) or
ST3 Pin 7
(Y- Axis), the
value deposited in
R7
, will be taken over into the actual position window.
R8 = XX1XXX – Datum to preset (target value)
With activating the external input
ST3 Pin 8
(X- Axis) or
ST3 Pin 7
(Y- Axis), the
actual target value
will be taken over into the actual position window (single mode
only).
R8 = XX4XXX – Datum directly to R7
(without external reference input)
2.4 Encoder pulse monitoring
There are a number of faults on a machine that can stop the operation i.e.
Stalled motor, Controller failure, Cable failure,
Encoder failure
Should pulses fail to reach the controller after start has been given and before in posi-
tion is reached, then one of the above faults must be present. The controller monitors
the pulses at intervals set in Register
R19 X/Y
. If the Register
R19 X/Y
is set to "0",
the monitoring features will be disabled. Should a failure occur, the
ERROR01
is dis-
played in target position window.
2.5 Error messages
If any failures are present, the following error numbers flashes in the target value win-
dow.
Error number
01
= Encoder error
02
= End Limit minimum active
03
= End Limit maximum active
04
= Actual position < min software limit (R13) Hand
Target position < min software limit (R13) Single
05
= Actual position > max software limit (R14) Hand
Target position > max software limit (R14) Single
07*
= External stop activated or wire break
08
= Maximum number of program lines exceeded
The fault message is cleared by pressing any button.
“07” also flashes if Stop on front panel is activated in middle of any move.
*Notice for 07:
The external STOP input must be linked before system can oper-
ate. Therefore, if external n/c pushbutton is not fitted, then insert a permanent
wire link. Thus the stop input can be used as wire break input.
