Microscan MS-890 User Manual page 270

Electrical Specifications
Optoisolator Outputs
Optoisolator circuits can transfer pulses between the scanner and peripherals with no direct
connection with the scanner's internal circuitry. However, not every optoisolator configuration
provides complete isolation. The following diagrams show both fully optoisolated and non-optoisolated
circuits. They are only examples and do not represent all possible wiring configurations.
I =5mA
load
V 0.7V
Out-On
t 30 µS
On-Typ
t 1000 µS
Off-Typ
Output Circuit Examples
Fully Optoisolated
This circuit is fully optoisolated and is
the recommended configuration. It
allows the user to apply 1 to 28VDC to
the circuit.
Caution: The maximum current that can
pass through the optoisolator is 100mA.
Not Optoisolated, Scanner Grounded
Non-isolated MS-880
Pwr +
Scanner
Output
Pwr –
Non-isolated MS-880
Pwr +
Scanner
Output
Pwr –
A-6
I =50mA
load
0.9V
20 µS
150 µS
Host
Pin 18
Pins
6,8,15
respectively
paired with:
INPUT
Pins
20,21,22
Pin 17
Host
Pin 18
1 to 28 V
Pins
6,8,15
respectively
paired with:
INPUT
Pins
20,21,22
Pin 17
I =100mA
load
1.0V
30 µS
75 µS
Isolated MS-880
Pwr +
Scanner
Output
Pwr –
MS-890 Industrial Automation Scanner User Manual
Host
Pin 18
1 to 28 V
Pins
6,8,15
respectively
paired with:
Pins
20,21,22
Pin 17
INPUT