KYOWA WGA-910A Series Instruction Manual page 27

3-3-3. Connecting Control Output
・The control output signal is open collector output and sink type.
・Applicable connector of the cable side is as same as that of the control input side.
・Pin numbers and signal names of the control output are as follows.
Pin No.
1 HH comparator output
2 HI comparator output
3 OK comparator output
4 LO comparator output
5 LL comparator output
6 Abnormal channel
7 Abnormal memory
8 Communication error
9 Healthy
・Equivalent circuit is described as the
right figure.
Output Signal
0
1
* Suppose output logic is "Negative
logic."
For the "positive logic," the
transistor output is reverse of the
above table.
・Capacity of the open collector is 30 VDC, 20 mA or less.
NOTE
・Never connect the signals to reserve pin.
・Arrange an external power supply for relay drive.
In addition, pay attention to the capacity of the external power.
・To connect a relay to control output, add a diode in parallel to the coil of a relay.
Absence of a diode can cause damage.
・Insert a surge killer in the contact of a relay.
For detailed information about a surge killer, contact the manufacture of a relay in use.
NOTE for wiring
・For connecting more than 1-m long cable, use a twisted cable.
・For connecting more than 3-m long cable, use a shielded cable and always ground the shielded cable to
the ground terminal.
・In addition, for connecting more than 30-m long cable or using outdoors, take special countermeasures
against noise.
Signal Name
Transistor
ON
OFF
Pin No. Signal Name
10 SD
11 Reserve
Reserve
12
Reserve
13
Reserve
14
Reserve
15
Reserve
16
17 Output COM
18 Output COM
23