Omron R88D-KTA5L User Manual page 155

Sensor ON Input (SEN)
Pin 20: Sensor ON input (SEN)
Pin 13: Signal ground (SENGND)
Function
This input changes to enable (set value: 1) according to the setting of Absolute Interface
Function Selection (Pn616).
When the SEN signal turns ON, this performs serial transmission of multi-rotation data of the
absolute encoder and also outputs 1-rotation data as the initial incremental pulses.
If the SEN signal is OFF, motor power supply is not possible even when the RUN signal
(Operation command) is input. The RUN signal changes to enable after the SEN signal turns
ON and the normal operation of encoder becomes ready.
If the power is turned ON with the encoder disconnected, the SEN signal is ignored.
Backup Battery Input (BAT)
Pin 42: Backup battery +input (BAT)
Pin 43: Backup battery −input (BATGND)
Function
 These are the backup battery connection terminals used when the absolute encoder power is
interrupted.
 Normally, the battery is connected to the battery holder for the absolute encoder battery cable. Do
not connect anything to these terminals.
Precautions for Correct Use
Be sure not to connect to both of the absolute encoder battery cable and the backup battery
inputs at the same time. Such connection may result in malfunction.
Speed Command Input (REF), Torque Command Input (TREF1) and Speed Limit Input (VLIM)
Pin 14: Speed command input (REF), torque command Input (TREF1) and speed limit input
(VLIM)
Pin 15: Analog input ground (AGND1)
Function
 During speed control
Speed command is input. Use the Speed Command Scale (Pn302) to change the rotation speed
scale for the command input.
 During torque control
This signal provides either a torque command input (set value: 0 or 2) or speed limit input (set
value: 1) according to the setting of Torque Command/Speed Limit Selection (Pn317).
In the case of torque command input 1 (TREF1), you can use Torque Command Scale (Pn319)
to change the rotation speed scale relative to the command input.
In the case of speed limit input (VLIM), you can use the Speed Command Scale (Pn302) to
change the limit speed scale relative to the analog input.
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
3-1 Servo Drive Specifications
3
3-36