2-2 Water Leakage Sensor Connection (Refer to Attached Drawing 3 and Attached Drawing 4)
Connect the water leakage sensor to the “S1”-“S10” of the sensor connection terminal block. The sensor has no polarity.
Example: For S1, connect the water leakage sensor to A-6 and B6.
*Be sure to install break detection terminal on water leakage sensor.
If it is the point sensor, use break detection terminal built-in product (AD-PA-R).
(Precautions)
◇ When sensor is not connected, set the DIP switch at the position “ON”. When not set “ON”, break alarm will be
output. (Note) DIP switch dispatched by the factory has been set at the position “1”.
◇ When conducting wire change, etc., conduct it under the condition that the detector power source has been cut off.
◇ A-1 and B-1.are not used Do not connect water leakage sensor.
Drawing 3 Terminal Block for Sensor
2-3 Connection of Main Control Output Contact (Refer to Attached Drawing 3)
Due to main output contact of water leakage and abnormalities (contact c), connect when external control is required.
Drawing 4 Main Control Output Contact
Water leakage contacts COM-NO: Closed when single-circuit water leakage is detected
COM-NC: Open when single-circuit water leakage is detected
Abnormality COM-NO: Closed when single-circuit water leakage or break is detected
COM-NC: Open when single-circuit water leakage or break is detected
*Contact operation
Setting SW2 on CPU unit can enable the alarm hold and the fail-safe function to be effective.
* If the fail-safe function is effective, the contact will be operated reversely.
For details, refer to Attached Drawing 6 and the Operation Chart of Chapter 4.
*Abnormal contact
Setting SW2 on CPU unit, the operation can be changed as activated only when the break and
recovery occur.
For details, refer to Attached Drawing 6.
-2-
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
1
1
1
1
1
1
1
1
1
1
CPU Unit
Connection Sensor 1
～
5
Connection Sensor 6
～
10
5-Circuit Expansion Unit
Water leakage
Abnormality
COM
NC NO
COM
NC
NO
