3. Product Configuration
3-3 Block diagram
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3-3 Block diagram
3-3-1 Electrical circuit diagram
Refer to the product electrical circuit diagram provided below.
<4 - 20 mA models>
Power supply section
Alarm contact control unit
・
Gas alarm contacts
(Ch1 - 4 ALM1)
・
Gas alarm contacts
(Ch1 - 4 ALM2)
・
Fault alarm contact
(FAULT)
* Standard settings for
contact operation
Under normal conditions:
De-energized
At an alarm state:
Energized
・
24 V DC
・
4 - 20 mA
External output section
Control unit
CPU
Sensors (Ch1 - 4)
Display (LED)
Button panel
Pump
Flow sensor
Pump control circuit
Power source voltage
conversion section
Display (LCD)
・
POWER
・
ALM1
・
ALM2
・
FAULT
・
MODE
・
TEST/SET
・
▲
・
▼
・
SHIFT
Содержание GD-84D-EX Series
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