Digital Output Circuit Wiring; Frequency-Division Output Circuit Wiring Of Encoder Feedback Signals - INVT DA180-S2R8SG0 Operation Manual

DA180 series basic AC servo drive

4.5.4 Digital output circuit wiring

Wiring method in which user-provided power is used
Drive side
Max. load capacity of each
output terminal: 30V, 50mA
① Connecting to a relay coil

There are six digital output circuits in total, which use the open-collector output structure as
shown in the figure. They can be used to drive the relay coil or optical coupler load. The loading
capacity is shown in the figure.

If an inductive load such as the relay coil is connected, a free-wheeling diode must be connected,
as shown in the figure. If an optical coupler is connected, a current limit resistor must be
connected; otherwise, the drive may be damaged.

4.5.5 Frequency-division output circuit wiring of encoder feedback signals

Differential method

Phases A, B, and Z of the encoder provide differential output signals. You are recommended to
use AM26C32 or equivalent chip and connect an end-matching resistor of about 220Ω.

No isolation is made for any output circuit.
Connect a free-wheeling
diode if an inductive load is
connected.
RY
DO1+ 14
+
DC
-
12~24V
DO1- 5
Shielded
cable
OA+ 44
OA- 43
OB+ 41
OB- 42
OZ+ 28
OZ- 27
GND 6
Drive side
Drive side
Max load capacity of each
output terminal: 30V, 50mA
② Connecting to an optical coupler
Twisted Terminal
pair resistor
-53-
Control modes
Connect to a current limit
resistor if an optical coupler
is connected.
DO1+ 14
DC
12~24V
DO1- 5
AM26LS32
or equivalent chip
GND
Connect the shielded
cable according to
device requirements
+
-