Connecting Control Input Terminal; Connecting High/Low Limit Comparator Output; Connecting Analog Output (D/A Output) - KYOWA WGA-670B-0 Instruction Manual

2-2-4 Connecting Control Input Terminal

• Contact connection terminal is as follows.
No. 6: Common terminal (COMMON)
No. 7: Reset
No. 8: Hold
No. 9: ZERO
• For using the external switches; ZERO, HOLD, and RESET,
connect as shown in the right figure. (Open collector enabled)
• For connecting more than 1-m long cable, use a twisted cable.
• For connecting more than 3-m long cable, use a 2-conductor twisted
cable and always ground the shielded cable to the ground terminal.
(No. 18).
• In addition, for connecting more than 30-m long cable or using
outdoors, take special countermeasures against noise.

Connecting High/Low Limit Comparator Output

2-2-5
• Comparator output connection terminal is as follows.
No. 15: Common terminal (COMMON)
No. 16: Low limit
No. 17: High limit
• Connect as shown in the right figure.
• For connecting more than 1-m long cable, use a twisted cable.
• For connecting more than 3-m long cable, use a 2-conductor
twisted cable and do not forget to ground the shielded cable to
the ground terminal (No. 18).
• In addition, for connecting more than 30-m long cable or using
outdoors, take special countermeasures against noise.

2-2-6 Connecting Analog Output (D/A Output)

• Display value is output by converting into analog signal.
• Analog output terminals are as follows.
Rear terminal board No. 12: Current output (4 to 20mA)
• Use current output having load resistance 500 Ω or less and voltage output 2 kΩ or more.
• For connecting more than 1-m long cable, use a twisted cable.
• For connecting more than 3-m long cable, use a 2-conductor twisted cable and do not forget to ground the
shielded cable to the ground terminal (No. 18).
• In addition, for connecting more than 30-m long cable or using outdoors, take special countermeasures against
noise.
No. 13: Common
No. 14: Voltage output (±10V)
12V 12V
1〜 5mA → 1〜 5mA →
7
Internal Internal Exte rnal Exte rnal
COM
Switch or Switch or
Open Collector Open Collector
Input Connection Diagra m Input Connection Diagra m
Max 30V Max 30V
Internal Internal
Exte rnal Exte rnal
← Max 20mA ← Max 20mA
COM COM
Output Connection Diagra m Output Connection Diagra m