CKD AX Series Instruction Manual page 63

5
HOW TO
USE I/O
I/O output state at power-on
After the in-position output is turned on and ABSODEX is ready to receive a start input,
the start input wait output is turned on. Other outputs are turned off. However, if there is
an alarm, an alarm output is turned on. (Alarm outputs are negative logic.)
If there is no alarm, alarm outputs are turned on for 0.3 to 0.5 seconds after the power is
turned on, then they are turned off. Before alarm outputs are turned off, other I/O outputs
may become unstable. Build an AND circuit with alarm outputs or take other measures
when necessary.
I/O output state upon emergency stop input
The state of CN3 output signals shown in Table 5.2 after an emergency stop input is
supplied is shown in Table 5.3.
Table 5.3 Output Signal State at Emergency Stop Input
Type
A
B
C
D
E
F
In this instruction manual, the input signal activated upon a closed contact shown in
Fig. 3.11 Input Circuit is called a positive logic input, and the input signal activated
upon an open contact is called a negative logic input. As well, the signal causing the
current to flow in the load upon an active (ON) output shown in Fig. 3.12 Output
Circuit is called a positive logic output, and the signal causing the current to flow in
the load upon an inactive (OFF) output is called a negative logic output.
[SMB-14E]
Discontinue
When answer input is unnecessary: OFF upon emergency stop input
When answer input is necessary: OFF at reset input
ON or OFF according to output condition without relations to emergency
stop input
ON at reset input
OFF at emergency stop input, ON at reset input
ON or OFF according to output condition after reset input
OFF at reset input
OFF at emergency stop input
State of Output Signal
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