Internal Input Circuit - Vexta EMP400 Series Operating Manual

5.4.2 Internal input circuit

The signal state represents the "ON: Carrying current" or "OFF: Not carrying current" state of the internal
photocoupler rather than the voltage level of the signal.
END, TIM, ALM
+LS, -LS
HOMELS, SLIT
END input
This terminal is used to input the END signal output from the driver at the end of operation. This
terminal should be connected when using the
The END signal is enabled or disabled via command input. (Set to "enabled" at the time of power-
on.)
TIM input
This terminal is used to input the timing signal from the driver.
When mechanical home is detected in mechanical home seeking mode, an accurate home position
can be found by using this signal with the HOMELS input or the HOMELS input/TIM input by
connecting them with an AND logic operator.
ALM input
This terminal is used to input the alarm signal from the driver. (The driver's alarm outputs may either
be at normally open or normally closed, depending on the model.)
If an alarm-signal input is fed while the motor is in operation, the motor will decelerate to a stop and
the program will stop also.
No pulse can be output while alarm signal inputs are being fed, although any command not associated
with pulse output can be executed.
The input logic may be switched between normally open and normally closed via command inputs.
(Set to "normally closed" at the time of power-on.)
+LS and –LS inputs
This terminal is used to input signals from +LS and –LS.
If the LS input is turned on during pulse output, the motor will stop immediately. However, mechanical
home seeking will continue even if the LS input is turned on.
The input logic may be switched between normally open and normally closed via command inputs.
(Set to "normally open" at the time of power-on.)
Note
Note that two different input logics cannot be set for the +LS and –LS inputs, respectively.
HOMELS input
This terminal is used to input signals from HOMELS when performing high-speed home seeking
using three sensors.
The input logic may be switched between normally open and normally closed via command inputs.
(Set to "normally open" at the time of power-on.)
SLIT input
This terminal is connected when using a motorized slider with a slit sensor.
An accurate home position can be found by using this signal with the HOMELS input or the HOMELS
input/TIM input by connecting them with an AND logic operator.
The input logic may be switched between normally open and normally closed via command inputs.
(Set to "normally open" at the time of power-on.)
+12V
PS2801 or
equivalent
1kΩ
2.7kΩ
5 5 5 5 5
or servo motor.
Connection
5-9