SRV-63 series AC servo drives Control mode applications
-55-
4.5.4 Wiring of digital output circuit
Connection diagram when the power supply is provided by user:
Users must install this
freewheeling diode when
connecting to inductive load
Max load capacity of each
output terminal: 30V, 50mA.
DC
12~24V
+
-
Drive side
DO1 14
COM- 12
Max load capacity of each
output terminal: 30V, 50mA.
+
-
RY
DC
12~24V
①
connect to relay coil
②
connect to optical coupler
DO1 14
COM- 12
Users must connect to current
limit resistor when connecting
to optical coupler
Drive side
Connection method when the local power supply is used:
Users must install this
freewheeling diode when
connecting to conductive load
Max load capacity of each
output terminal:
30V, 50mA.
Drive side
DO1 14
COM- 12
Max load capacity of each
output terminal:
30V, 50mA.
RY
①
connect to relay coil
②
connect to optical coupler
DO1 14
COM- 12
Users must connect to current
limit resistor when connecting
to optical coupler
Drive side
24V 40
24V 40
There are 6 digital output circuits in total and all of them adopt the open-collector output as
shown in the figure. They can be used to drive the relay coil or optical coupled load. The loading
capacity is shown in the figure.
When inductive loads such as relay coil are connected, a free wheel diode must be fitted as
shown in the figure; when optical coupler is connected, current limit resistor must be connected,
otherwise the drive will be damaged.
The local 24V power supply only can provide 100mA current. If the actual load current is larger
than 100mA, the user should provide the power supply by themselves. The recommended
capacity is greater than 500mA.