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MELSEC-Q
3 SPECIFICATIONS AND FUNCTIONS
3.4 Specifications of interfaces with external devices
3.4.1 Electrical specifications of input signals
Input specifications
Signal name
Rated input
voltage/current
Working
voltage range
ON
voltage/current
OFF
voltage/current
Input
resistance
Response
time
Forced stop input
signal (EMI)
Upper limit signal
(FLS)
Lower limit signal
(RLS)
Stop signal (STOP)
24VDC/5mA
19.2 to
26.4VDC
17.5VDC or more/
3.5mA or more
7VDC or less/
1.0mA or less
Approx. 6.8k
Ω
4ms or less
5VDC/5mA 4.5 to 6.1VDC
2.5VDC or more/
1mA or more
1VDC or less/
0.1mA or less
Approx. 1.2k
Ω
1ms or less
1
Pulse width
4ms or more
2ms or more
2ms
or more
(Duty ratio: 50%)
2
Phase difference
Manual pulse
generator A phase
(PULSE
GENERATOR A)
Manual pulse
generator B phase
(PULSE
GENERATOR B)
A phase
B phase
1ms or more
When the A phase leads the B phase, the
positioning address (current value) increases.
Near-point dog signal
(DOG)
External command
signal (CHG)
24VDC/5mA
19.2 to
26.4VDC
17.5VDC or more/
3.5mA or more
7VDC or less/
1.0mA or less
Approx. 6.8k
Ω
1ms or less