Wiring The Fail-Safe Alarm Contacts; Figure 2.12: Fail-Safe Relay Contacts Of Eki-4524Ri; Figure 2.13: Fail-Safe Relay Contacts Of Eki-4524Ari - Advantech EKI-4524RI User Manual

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.
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.
Note
EKI-4524RI & ARI_User Manual
7
8
P-Fail

Figure 2.12: Fail-Safe Relay Contacts of EKI-4524RI

Figure 2.13: Fail-Safe Relay Contacts of EKI-4524ARI

•
Use Copper Conductors Only, 60/75
•
The wire gauge for the terminal block should be in the range between
12~ 24 AWG.
9
10
20mA@250VDC
°
C, tightening to 5 lb-in
16