YOKOGAWA YS1000 Series, User Manual

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6-2
IM 01B08D02-02EN
Digital outputs
Item YS1310
Alarm output 6 points (shared by digital input)
Transistor contact Rating 30 V DC, 200 mA or less (resistive load)
FAIL output (*1) 1 point
Transistor contact Rating 30 V DC, 200 mA or less (resistive load)
*1: FAIL contact output enters the OFF status at power OFF or failure.
For contact action (ON in normal condition), it is normally closed.
Isolation of Signals from Each Other
Item YS1310
Analog input signal
Not isolated from the computation control circuit. Signals are not isolated
from each other. The negative line is shared. Isolated from other input
and output signals.
Direct input
With the exception of 2-wire transmitters (not isolated), input signals are
isolated from the computation control circuit. Isolated from the power
supply circuit, and other input and output signals.
Digital input and output
signal
Isolated from the computation control circuit, between the signals, and
from other input and output signals
FAIL signal
Isolated from the computation control circuit and from other input and
output signals
Communication
Isolated from the computation control circuit and from other input and
output signals
Power supply
Isolated from the computation control circuit and from other input and
output signals
Grounding
Isolated from the computation control circuit and from other input and
output signals
Transmitter Power Supply
Item Specifications
Output voltage 25 to 25.5 V DC
Load 60 mA or less (30 mA or less if there is direct input)
Short-circuit
protection
80 mA ±10 mA
Others
No effect on the computation control circuit if a short circuit occurs.
Not isolated from the computation circuit.
An external resistor for 1–5 V conversion (250 Ω) should be provided.
6.1 General Specifications