Figure 2.13 Power Wiring For Eki-1221Ieimb | Pnmb - Advantech EKI-1221IEIMB User Manual

The following figure illustrates a P-Fail alarm application example. The P-Fail alarm
contacts are visible on the front view of the terminal block.
You can connect an alarm indicator, buzzer or other signaling equipment through the
relay output. The relay opens if power input 1 or 2 fails. In a wiring example where an
LED is connected to the relay output, the LED would be off in an Open state.
EKI-1221IEIMB | PNMB User Manual
PWR2 1A@24V
V2- V2+
P-Fail
Load

Figure 2.13 Power Wiring for EKI-1221IEIMB | PNMB

PWR1 DC12-48V
V1- V1+
External
Power
15