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3. SIGNALS AND WIRING
(b) Lamp load
Servo amplifier
VIN
ALM,
etc.
R
SG
(Note)
External
power supply
24VDC 10%
Note. If the voltage drop (maximum of 2.6V) interferes with the relay operation, apply high voltage (up to 26.4V) from external
source.
(3) Pulse train input interface DI-2
Provide a pulse train signal in the open collector or differential line driver system.
(a) Open collector system
1) Interface
OPC
PP, NP
SG
SD
Servo amplifier
Max. input pulse
frequency 200kpps
Approx. 1.2k
External power
supply 24VDC
2m (78.74in)
or less
(Note)
Note. Pulse train input interface is comprised of a photo coupler.
Therefore, it may be any malfunctions since the current is reduced when connect a resistance to a pulse train signal line.
2) Conditions of the input pulse
0.9
0.1
tc
tHL
tc tLH
tF
tLH tHL 0.2 s
tc 2 s
tF 3 s
PP
NP
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