M800S/M80/E80 Series Connection and Setup Manual
23 Setting the Tool Entry Prohibited Range
480
IB-1501269-J
Following functions are available for setting a tool entry prohibited range to detect over travels (OT).
(1) Stroke end (H/W OT)
The limit switch signal will detect the stroke end and limit the movement of the axis.
(2) Stored stroke limit (S/W OT)
Prohibited ranges are set with parameters.
When stroke end (H/W OT) is set, the axis will move the distance required to decelerate and stop after H/W OT is
activated.
When stored stroke limit (S/W OT) is set, the axis will stop before the prohibited range of S/W OT including the
deceleration distance.
For safety, set the stroke end (H/W OT) and also, the stored stroke limit (S/W OT).
23.1 Stroke End (H/W OT)
The axis movement is controlled by the limit switch which detects the stroke end.
Signal device No. is allocated by the following parameters.
Parameter "#2074" and "#2075" will be valid only when "#1226 aux10/bit" is set to "1".
#1226 aux10/bit5: Set to "1" (assigning the dog signal is valid).
#2074 H/W OT+: Set the input device for assigning the OT (+) signal. (Setting range 0000 to 02FF (Hexadecimal))
#2075 H/W OT-: Set the input device for assigning the OT (-) signal. (Setting range 0000 to 02FF (Hexadecimal))
(Note 1) When "OT IGNORED" (R248) signal is set to ON, the stroke end signal associated with a specific control axis
can be ignored.
(Note 2) When parameter "#1226 aux10/bit5" is set to "1", do not set the same device No. to #2073 to #2075.
Setting the same device No. may cause the emergency stop. However, the device number will not be checked
for the axis which is set the signal to ignore (R248,R272).
WARNING
Stroke end (H/W OT) and stored stroke limit (S/W OT) must always be set. If not, the tool may hit the machine end.
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