Description of Units and Circuit Boards
8
-
80
NOTICE
When connecting an inductive load to the output circuit, connect a flyback (snubber) diode
in parallel to the inductive load to suppress the surge voltage. Not using a fly-wheel diode
may damage the output circuit.
When connecting a load with a large inrush current such as a lamp, connect a current
limiting resistance in series to the load, so that the output current does not exceed its
maximum value. Exceeding the maximum output current value may damage the output
circuit.
Refer to chapter 8.29 "Assignment of general I/O signal" from 92 about the maximum
current of the transistor and the relay output circuits.
•
Specific I/O signal related to start and stop
The following signals are specific I/O signals related to start and stop.
•
SERVO ON (depending on application: JANCD-YIO22-E)
•
External SERVO ON (common to all application: JANCD-YFC22-E) external start
(depending on application: JANCD-YIO22-E)
•
Operating (depending on application: JANCD-YIO22-E)
•
External Hold (common to all application: JANCD-YFC22-E)
•
External Emergency Stop (common to all application: JANCD-YFC22-E)
Universal I/O circuit board
Inductive load
Flywheel diode
Lamp
Current limiting resistor
Timing chart
Robot
While SERVO-ON
SERVO-ON
External start
Execution
Extern Stop
Emergency shut-off
Note: set T = 100 ms minimum
1
+24VU
(JANCD-YIO22-E)
024VU
1
2
3
5
4
2
3
4
5
1
RUN
STOP
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
1
2
3
4
5
6
7
T
T
T
2
3
4
5
6
7
