
EDIT.
SHEET
DRAW. NO.
CUST.
TITLE
26
DESCRIPTIONDESIG.DATE
-80050E
1. Fuse
Interface unit has a fuse FU1 for the input of DC24V power supply. This fuse is for the protection of
the input of DC24V power supply of Handy machine operator’s panel (HMOP) and Interface unit. It
has the possibility that the fuse of FU1 blows when the Single LED "EN" of HMOP isn't turned on
and the LED "PO" of Interface unit isn't turned on after a DC24V power supply is supplied. In this
case, pull out the fuse from the socket, and examine continuity with a tester (or visual observation).
When the fuse blows, investigate the cause, and do proper treatment, and exchange it. The capacity
and the specification of the fuse are as the next. Refer to the section 5.2 of the specification material
for the mounting position of the fuse.
Name Capacity Specification
FU1 1.0A A03B-0815-K002
2. Indication of LED
Refer to the section 10.7 of the specification material for the Single LED "EN" and "ALM" of HMOP.
The following seven LEDs are mounted on Interface unit, and the condition of the unit is indicated.
As for the mounting position, refer to the section 5.2 of the specification material.
Name Lighting
color
Description
LI Green It is turned on with the master of I/O Link during the
communication.
LD Green It is turned on with the Handy machine operator’s panel during the
communication.
PO Green It is turned on during power supply on.
MS Red
E0 Red
E1 Red
E2 Red
It is turned on by the error occurrence. Refer to the next table for the
details.
The details of LEDs turned on by the error occurrence (○: lighting, ×: un-lighting)
MS E0 E1 E2 Error’s name Description Countermeasure
○ ○× ×
Peripheral error
of Interface unit
Interface unit is wrong. Replace Interface unit.
○×○×
RAM parity error
of Interface unit
Interface unit is wrong. Replace Interface unit.
○××○
Receiving error of
I/O Link
The other equipment
connected with I/O
Link is wrong.
Confirm the other
equipment connected
with I/O Link.
○○×○
Framing error of
I/O Link
The communication
end signal of I/O Link
is incorrect.
○×○○
CRC error of I/O
Link
The communication
data of I/O Link is
incorrect.
02 2001.8.20 Hiraga This page is added.
Maintenance of Handy machine operator’s panel
Maintenance of Handy machine operator’s panel