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10. Functions of the inputs (Connector St3)
St3/1 Reset
St3/3 & 7 End Limits
External limit switches can be connected Input logic is NPN i.e. input open = end
limit activated St3/3 -ve end limit St3/7 +ve end limit
Fault monitoring : End limit –ve active = 02
End limit +ve active = 03
N.B If these are not connected to limit switches they need to be connected
Normally closed (i.e. linked out).
St3/4 External Start input
The input is edge triggered Logic : opening or closing can be selected by R88/5.
St3/5 Incremental – ve
The Axis will position in incremental, towards zero, with this input active.
St3/6 Incremental + ve
The Axis will position in incremental, towards maximum, with this input active.
The above two inputs have priority over the software selection in R18/3 and
R18/4. In programme mode. The input ST3/6 also needs to be closed.
St3/8 Datum Setting
If 0 or 1 is set in R8/3, this input is active.
R8 = xx0xxx Datum to R7
= xx1xxx Datum to Target selected
St3/9 PE
St3/11 +24V
St3/14 External Stop
Input logic is NPN i.e. Input open = stop active (no positioning possible)
Should a start signal be given, the Fault 07 will be displayed.
Input closed = Stop inactive (Positioning possible).
Stop input is also active in Hand operation.
St3/16 Quantity Adding/Subtracting
Each pulse of this input will increment or decrement the counter.
St3/18 Retract
If R18 = x0xxxx move to position “Actual + R5”
x1xxxx move to position set in R5
St3/19 Fixed Position
Activating this input starts the Axis to move to fixed position set in R25.
Speed and acceleration of this move can be set independently into R65 and R66.
St3/23 0V
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