7
Signal Input Sequences
55
External Circuits
Trigger Input Sequence Diagram
Error Output
Error Output
Circuit Example
If another trigger is input before the Light Unit turns OFF in Strobe Mode, the starting point of the reentered trigger is taken as the start time and the strobe light continues for the set time from that point.
Normal operation
Pins 19 and 20 are open.
Error
Pins 19 and 20 are closed.
Rated input voltage: 24 VDC
Maximum input voltage: 26.4 VDC
Load current: 20 mA max.
Leakage current: 50 µA max.
Signal Specifications
Sequence Diagram for Writing Data
Channel Selection Input
CHSEL2 to CHSEL0
Light Intensity Write Input
BRTWR
Lighting Mode Write Input
Light Intensity Input
TRGWR
Photocoupler OFF
Photocoupler ON
Photocoupler OFF
Photocoupler ON
L1 light
set value
L2 light
set value
B7 to B0
Lighting Mode Value Input
M3 to M0
200 µs min.
300 µs min.
200 µs min.
300 µs min.
50 µs max.
50 µs min.
50 µs min.
50 µs min.
50 µs max.
50 µs min.
L1
Light intensity 1
L2
Light intensity 2
Lighting mode 2
Light intensity/lighting mode 1
Light intensity/lighting mode 1
Light intensity/lighting mode 2
Light intensity/lighting mode 2
Lighting mode 1
Signal input
HIGH
OFF
LOW
ON
HIGH
ON
LOW
Sinking
Sourcing
OFF
Photocoupler
1
0
0
1
Data
Photocoupler OFF
Photocoupler ON
Photocoupler OFF
Photocoupler ON
Strobe Mode
Trigger Logic Switch Set to HIGH
From the point where the photocoupler goes OFF, the Light Units are
turned ON for the set time (40 µs to 40 ms).
Trigger Logic Switch Set to LOW
From the point where the photocoupler goes ON, the Light Units are
turned ON for the set time (40 µs to 40 ms).
Light Unit status
Light Unit status
10 µs max.
10 µs min.
40 µs to 40 ms
10 µs max.
10 µs min.
40 µs to 40 ms
Not lit.
Not lit.
Not lit.
Not lit.
Not lit.
Not lit.
Not lit.
Not lit.
Lit.
Lit.
Lit.
Lit.
Photocoupler OFF
Photocoupler ON
Photocoupler OFF
Photocoupler ON
ON/OFF Mode
Trigger Logic Switch Set to HIGH
The Light Units turn ON when the photocoupler is OFF, and OFF when
the photocoupler is ON.
Logic Switch Set to LOW
The Light Units turn ON when the photocoupler is ON, and OFF when
the photocoupler is OFF.
Light Unit status
Light Unit status
Lit.
Lit.
Not lit.
Not lit.
Not lit.
Not lit.
Not lit.
Not lit.
10 µs max.
10 µs max.
10 µs max.
10 µs max.
Lit.
Lit.
Not lit.
Not lit.
* Pins 1011 to 1111 are not valid.
8
Troubleshooting
If the consumption current of Light Units exceeds 107% higher than the
rated current, the overcurrent protection operates and stops the output.
OCP will be displayed on the digital window.
Please check the rated current of Light Units and connect the Light Units
under the rated current of this control unit.
Please press Setting Switch for over a second to reset the OCP error.
(OCP error can be reset by rebooting.)
The error status is output from pins 19 and 20 of the external
control connector.
Setting Switch
Press over a second
PD3 Control Unit
19
20
Photocoupler
Error Output
OC
Error Output
OE
Error Output
Load current
