IAI America MSEP - Manual (Page 162)

3.8 I/O Signal Controls and Function
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2) Inching operation
The inching operation is available while the JISL signal is turned “ON”.
Once it is turned “ON”, the actuator is moved as much as the inching distance.
When the JOG+ is turned “ON”, the movement is to the opposite of the home and when the
JOG- is turned “ON”, the movement is to the home.
The operation is performed based on the set values.
x The speed for an operation is provided with the value set in Parameter No.2 “PIO JOG
Speed”.
x The movement distance for an operation is provided with the value set in Parameter No.25
“PIO Inching Distance”.
x The acceleration/deceleration conforms to the rate acceleration/deceleration (the specific
value varies depending on the actuator).
During the normal operation, even when the “+” Jog Signal or “-” Jog Signal is turned “ON”, the
normal operation is continued. (The Jog signal is ignored.)
In the pause condition, even when the “+” Jog Signal or “-” Jog Signal is turned “ON”, the
actuator is not moved.
(Note)Because the software stroke limit is disabled before the homing operation, the actuator
might run against the mechanism end. Take the greatest care.
(13) Incremental Command (INC) PLC Output Signal
If this signal is ON and a movement command is executed, the actuator moves for the distance
set in the target position register from the current position.
(14) Jog/inching switching (JISL) PLC Output Signal
This signal changes over the jog operation and the inching operation.
JISL = OFF : Jog operation
JISL = ON : Inching operation
When the JISL signal is turned “ON” (for inching operation) during the jog operation, the
actuator is decelerated and performs the inching operation.
When the JISL signal is turned “OFF” (jog) while the actuator is moving by inching, the actuator
will complete the movement and then switch to the jog function.
Jog operation Inching operation
JISL OFF ON
Speed Parameter No.2, “Jog speed” Parameter No.2, “Jog speed”
Movement distance 㧙 Parameter No.25, “Inch distance”
Acceleration/ deceleration
Rated value (The specific value varies
depending on the actuator.)
Rated value (The specific value varies
depending on the actuator.)
Operation When the JOG +/JOG – signal is ON. Upon detection of the leading (ON
edge) of the JOG +/JOG – signal.