Advantech EKI-4524ARI, Руководство пользователя

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2.7 Wiring the Fail-Safe Alarm Contacts
With a
Normally Close
circuit formed by wiring with an external power and an alarm device (a buzzer or
a flashing LED), system will detect the power failure event. If a failure event occurs, the relay inside the
equipment will act as an open switch, and therefore break the external circuit. The fail-safe design is
intended for triggering the connected alarm device for warning purposes.
EKI-4524RI P-Fail Alarm Wiring
The fail-safe relay alarm contacts of EKI-4524RI are labeled as 8 and 10 as the figure shown below.
20mA@250VDC
P-Fail
7
9
8 10
Figure 2.12: Fail-Safe Relay Contacts of EKI-4524RI
EKI-4524ARI P-Fail Alarm Wiring
The fail-safe relay alarm contacts of EKI-4524ARI are labeled as 3 and 4 as the figure shown below.
Figure 2.13: Fail-Safe Relay Contacts of EKI-4524ARI
Note
•
Use Copper Conductors Only, 60/75
°
C, tightening to 5 lb-in
•
The wire gauge for the terminal block should be in the range between
12~ 24 AWG.
EKI-4524RI & ARI_User Manual 16