Control Signal Input/Output Description - Fastech S-SERVOII Operating Manual

35. Control Signal Input/Output Description

1
Input Signal
Input signals of the drive are all photocoupler protected.
The signal shows the status of internal photocouplers
[ON: conduction], [OFF: Non-conduction], not displaying
the voltage levels of the signal.
Ω
Ω
Functions
S-SERVO II ST
Open Collector Input
CW+
CW-
CCW+
CCW-
※ S-SERVOⅡ 2X and 3X' s pin number is the same as S-SERVOⅡ ST.
◆ CW, CCW Input
This signal can be used to receive a positioning pulse command
from a user host motion controller. The user can select 1-pulse
input mode or 2-pulse input mode.
The input schematic of CW, CCW is designed for 5V TTL level.
When using 5V level as an input signal, the resistor Rx is not
used and connect to the driver directly. When the level of input
signal is more than 5V, Rx resistor is required. If the resistor is
absent, the drive will be damaged. If the input signal level is 12V,
Rx value is 680ohm and 24V, Please use Open Collector Input.
Ω
Functions
S-SERVO II ST
EXT_24VDC
Alarm Reset
Enable
※ S-SERVOⅡ 2X and 3X' s pin number is the same as S-SERVOⅡ ST.
◆ Enable Input
This input can be used only to adjust the position by manually
moving the motor shaft from the load-side. By setting the signal
[ON], the driver cuts off the power supply to the motor. Then,
one can manually adjust output position. When setting the signal
back to [OFF], the driver resumes the power to the motor and
recovers the holding torque. When driving a motor, one needs to
set the signal [OFF].
◆ Alarm Reset Input
When a protection mode has been activated, a signal to this
alarm reset input cancels the Alarm output.
※ By setting the alarm reset input signal [ON], cancel the Alarm
output. Before cancel the Alarm output, have to remove the source
of alarm.
Pin Number
S-SERVO II MINI
15 15
18 1
17 2
20 3
19 4
Pin Number
S-SERVO II MINI
10 20
11 14
12 13
2
Output Signal
Output signals from the driver are photocoupler
protected: Alarm, In-Position. The signal indicates the
status of internal photocouplers [ON: conduction], [OFF:
Non-conduction], not displaying the voltage levels of
the signal.
Functions
S-SERVO II ST
Alarm
In-Position
EXT_GND
※ S-SERVOⅡ 2X and 3X' s pin number is the same as S-SERVOⅡ ST.
◆ Alarm Output
The Alarm output indicates [ON] when the driver is in abnormal
operation. If a protection mode has been activated, it goes [OFF].
A host controller needs to detect this signal and stop sending
a motor driving command. When the driver detects an abnormal
operation such as overload or over current of the motor, it sets
the Alarm output to [OFF], flashes the Alarm LED, disconnect the
power to a motor and stops the motor simultaneously.
[Caution] Only at the Alarm output port, the photocoupler isolation
is in reverse. When the driver is in normal operation the
Alarm output is [ON].
◆ In-Position Output
In-Position signal is [ON] when positioning is completed. This
signal is [ON] when the motor position error is within the value
set by the switch SW4.
Motor Speed
In-Position
Signal
Pin Number
S-SERVO II MINI
13 11
14 12
9 19
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