IAI ERC3, Instruction Manual

Page: 134 / 188

Chapter 3 Operation
3.6 I/O Signal Controls and Function
126
(13) Jog/inch-distance switching (JVEL) PLC Output Signal
It is a signal to switch the parameters to indicate the speed or inching distance when in JOG
operation and inching operation. Table below shows the relations.
JVEL signal Jog operation : JISL=OFF Inch operation : JISL=ON
OFF Parameter No. 26, “Jog speed”
Parameter No. 26, “Jog speed”
Parameter No. 48, “Inch distance”
ON Parameter No. 47, “Jog speed 2”
Parameter No. 47, “Jog speed 2”
Parameter No. 49, “Inch distance 2”
(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.26, “Jog speed” Parameter No.26, “Jog speed”
Movement
distance
– Parameter No.48, “Inch distance”
JVEL
=OFF
Acceleration/
deceleration
Rated value (The specific value varies
depending on the actuator.)
Rated value (The specific value varies
depending on the actuator.)
Speed Parameter No.47, “Jog speed 2” Parameter No.47, “Jog speed 2”
Movement
distance
– Parameter No.49, “Inch distance 2”
JVEL
=ON
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.
(15) Teaching mode command (MODE) PLC Output Signal
Teaching mode signal (MODES) PLC Input Signal
When the MODE signal is turned “ON”, the normal operation mode is changed to the teaching
mode.
When the mode for the ERC3 for each actuator is changed to the teaching mode, the MODES
signal is turned ON.
After confirming that the MODES signal is turned “ON” on the PLC side, start the teaching
operation.
(Note) In order to change the normal operation mode to the teaching mode, the following
conditions are required.
 The actuator operation (motor) is stopped.

The + JOG (JOG+) signal and – JOG (JOG-) signal are turned “OFF”.

The Position Data Import Command (PWRT) Signal and Positioning Start (CSTR) Signal are
turned “OFF”.
(Note) When the PWRT signal is not turned OFF, the mode is not returned to the normal
operation mode.
ME0302-4A