
B-62714EN/04 MAINTENANCE 5.Power Mate i-D/H
- 173 -
5.1.2 LED Indications and Their Meanings
On the I/O Link-II slave board, one green LED and one red LED are
provided for status indication. The locations and display information
of the LEDs are described below.
In the description below, each LED has one of the following states:
A : Turned off B : Turned on C : Blinking D : Irrelevant
LED 2 (GREEN)
LED A (RED)
In the figure above, the face plate is indicated using dotted lines.
Name Color Meaning Action
LED A Red
A RAM parity error
occurred on the I/O
Link-II slave board.
If this LED is turned on, the
error may be recovered by
turning the power off than back
on. However, replace the PCB.
LED 2 Green
This LED is turned on
when communication is
performed normally
using the I/O Link-II
slave board. This LED
is off before
communication starts or
when a communication
error occurs.
If this LED is not turned on,
take the following actions as
required:
1) Check the I/O Link-II cable.
2) Check the connector
terminal block TBA.
3) Check the state of the I/O
Link-II master unit.
4) Replace the PCB.