April 21st 2010

Dear Valued Customer;

Fuji Electric FA Components & Systems Co., Ltd

Important Information for Customers Using Fuji Square Pilot Light DP series(A part of LED lights of CR partial pressure with working voltage 200-220VAC)
We greatly appreciate your patronage for our products. Lately, we have found a failure of the Square Pilot Light DP series
manufactured during a certain period of time; LED unit’s lighting lifetime may decrease.
Models that apply to the descriptions both (1) and (2) below are concerned. Namely, they are part of LED lights of CR
partial pressure with working voltage 200-220VAC.They will not lead to collateral effects such as fire and smoke.
We will inform customers of this important information through sales channel and supply a replacement product of LED unit
without charge to customers using the concerned model(s). If your models apply to the descriptions below, please contact oursales personnel, specified agent, or distributor.

(1) [Concerned Models]The following LED lights of CR partial pressure with working voltage 200-220VAC:
1. Square Pilot Light

Model number is written here

Model number: DP36xxx-xM3, DP40xxx-xM3, and DP48xxx-xM3
2. LED unit (Replacement LED light of Square Pilot Light)
Reference: DN6Q001-2Mx and DN6Q001-3Mx(2) [Concerned Lot (Manufactured Date)]
stSquareth

Manufactured between April 1 2008 and November 24 2009.

Rectangularwith 2

Rectangularwith3

Please refer to the step 3 in the attachment 1 “Method of Replacing DP Square Pilot Light LED Unit” to check if yourmodels fall under concerned models.
[For replacing LED unit]
From the standpoint of lifetime, this product can be easily replaced from the front face and be continuously used by changing
LED unit. Please refer to the attachment 1 “Method of Replacing DP Square Pilot Light LED Unit” for how to replace LEDunit as well as “Operation Display Device” catalogue.

[Contact]
If you use the concerned model(s), please contact our sales personnel, specified agent, or distributor. If you are not sure whether
or not your product is concerned or whom you should contact, please contact below:

Fuji Electric FA Components & Systems Co., LtdContact person: Inoue

E-mail: fukiage-cemadoguti@fujielectric.co.jp
Hours: 9:00am-5:00pm (except Sat, Sun, holidays, New-year holidays)

Your personal information (name, address, phone number, etc.) is intended to be used only for the subject matter and will bestrictly controlled. Although we may disclose your personal information only within a required range in consigning part of ourbusiness to our business partner or a group company, we will responsibly supervise the handling of your personal informationin the relevant business partner or group company.
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Attachment 1

Method of Replacing DP Square Pilot Light LED Unit
Warning 1. This instruction shows how to replace the units. Please read this instruction and the safety precautions for handling theproduct in the catalogue before actual work.
Warning

2. It can be replaced from the front face of the panel board without disconnecting; however, please note the following.
2-1. Do not insert your finger(s) inside while removing LED unit. Though electrodes are at the farthest, touching onthem may result in an electric shock.

Note2-2. We recommend that the panel board be closed during the work to prevent things from dropping.
3. We supply the inspected replacement without charge and guarantee its operation; therefore, it doesn’t need to bechecked at your site. However, we would ask you to perform lighting check with the test button for the important places
where light test circuit etc are located.
4. Removed units need not to be returned to us. However if you would like to do so, please contact our sales personnel orthe contact person shown on our website. We will inform you where to send.

Illustration 1. A flat-blade screwdriver’s size

Step 1. Tools
Use a flat-blade screwdriver.

Width: smaller than 4.5mm, thickness: thinner than 0.6mm
Width:<=4.5mm

Prepare one as shown in the illustration.

Thickness: <=0.6mm

Step 2. Removing LED Unit
2.1 It can be removed from the front face of the panel board.
*No need to open the panel board.

2.2 Grooves can be seen. The picture is a rectangular type.

Rectangular

Square
ﾚﾝｽﾞｹｰｽ[Position of grooves]

Grooves

Flat-blade
screwdriver

Grooves are located as shown in the illustration.

2.3 Insert the tip of the screwdriver into one of the grooves.

NoteHold the product with your finger.
The product might fall when removing.

2.4 Pilot light (where LED unit is located) can be removed by turning
the screwdriver.

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Fuji Electric FA Components & Systems Co., Ltd

ﾚﾝｽﾞｹｰｽ
Grooves

Flat-bladescrewdriver2.5 Remove the pilot light.
Warning
Although electrodes are at the farthest,
do not insert your finger(s) inside whileremoving pilot light.
It may result in an electric shock .

Step 3. Checking for models
3.1 Rectangular parts are located on the back of the removed
pilot light.

X: Yellow one is concerned and needs to be replaced.
O: Black one is not concerned and doesn’t need to be replaced.
*The picture on the right shows both yellow and black ones as anXexample.

O

3.2 Checking LED unit specification
Check its rated voltage, LED specification, and LED color.
Replace with the same spec product.
1. Rated voltage and LED color

G0
2
2

1

[220G] => 200Vac-220Vac[220G] => G means LED’s color is green

2

2.LED specification and LED color

2MG[2MG] => Type of unit 2M or 3M*Use 3M for 3-partition red (R) / orange (A) / white (W).
[2MG] => G means LED’s color is green

Step 4. Removing LED unit
4.1 Pilot light consists of “LED unit” and “Reflector”
V-shaped markV-shaped markReflector

Reflector

LED unit
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Fuji Electric FA Components & Systems Co., LtdX

4.2 Insert a flat-blade screwdriver into a gap of a snap fit
1. Insert the screwdriver 2-3mm deep => 2. Slant it a little in the direction of the arrow => 3. Pull the LED unit
NoteDo not hitch the screwdriver. It may damage the product.

231
A gap of asnap fit

Step 5. Re-mounting LED unit
5.1 Check the specification of LED unit to be attached. Attach the same spec unit.
(Please see Step 3. 3.2 for checking LED unit)
5.2 “LED unit” and “Reflector” have attaching direction.
V-shaped marks of the LED unit and reflector should be seen on the same side.
V-shaped mark on

V-shaped mark on LED

Reflectorunit

5.3 Attach a LED unit straight into a reflector one by one.
Attaching at a slant may damage the snap fit.

Insert slowly

Push it a little

Attach it until it clicks

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Fuji Electric FA Components & Systems Co., LtdStep 6. Re-installing Pilot Light
Install the pilot light into the frame (panel board).
6.1 Reflector has installing direction. Check it before installing.

V-shaped mark should be on the upper side.
V-shaped mark on

6.2 Install the pilot light into the frame.

It can be inserted smoothly.

Note

At this point, push it hard

It clicks when correctly installed.

so that it gets over theThere should be no gap between

snap fit.

Pilot light and the frame.

It cannot be installed if it is upside down.
[Upside down]

Try again with the right direction.

It cannot be installed till the end; itdoesn’t click. A gap can be seen.

Replacement is completed.
April 21st 2010

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Fuji Electric FA Components & Systems Co., Ltd