Rockwell Automation 2364F, 2364P User Manual

Replacement Kit Instructions

Power Fuse Replacement

Contents

What This Kit Contains

Other Items Needed

This document shows how to remove and replace power fuses in a Bulletin 2300 unit.
Using the table below, ver ify that you have rece ived the appropr iate items in your kit:
For this part: You should receive this quantity:
power fuse 1
Before you begin, be sure you also have the following:
Tools you will need for:
Measuring voltagesRemoving, loosening, and tightening bolts
Documentation:
Your drive system schematicsYour user manual
Publication 2300-5.16 September 1999
2 Power Fuse Replacement
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Safety Precautions

The following general precautions apply when servicing a Bulletin 2300 unit:
ATTENT ION: Only those famili ar with the drive system, the products used in the system, and the associated machinery should plan or implement the installation, startup, and future maintenance of the system. Failure to comply can result in personal injury and/or equipment damage.
ATTENT ION: Verify that all sources of AC and DC power are deenergized and locked out or tagged out in accordance with the requirements of ANSI/NFPA 70E, Part II.
ATTENT ION: The system may contain stored energy devices. To avoid the hazard of electrical shock, verify that all voltage on capaci tors has be en d ischarged before attempting to service, repair, or remove a drive system or its components. You should only attempt the procedures in this manual if you are qualified to do so and are familiar with solid-state control equipment and the safety procedures in publication NFPA 70E.

Special Instructions

Be lle v ille Wa s h e r (C uppe d
side toward mounting
surface)
Clamp W asher
ATTENT ION: When servicing any unit, do not drop any nuts, bolts, washer s, etc. i nside the uni t, as th ey may cause a short circuit on power up.
ATTENT ION: This drive system contains ESD (Electrostatic Dis charge) sen sitive part s and assemblie s. Static control precautions are required when installing, testing, or repairing this assembly. Component damage can result if ES D contr ol procedur es are not fol lowed. I f you are not familiar with static control procedures, refer to Allen-Bradley publication 8000-4.5.2, Guarding Against Electrostatic Damage or any other applicable ESD protection handbook.
Important:You will need to reuse parts that are removed from the unit.
Place parts, in the order removed, on a clean surface.
Important:Some washers, such as clamp a nd Belleville washer s, have only
one correct orientation.
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Power Fuse Replacement 3
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Preliminary Steps

Replacing the Power Fuses

Before replacing the power fuses, shut off the power; lockout/tagout the unit; and wait five minutes for the voltage to discharge. Open the bay door to the power fuses.
1. Using a meter , test t he volt age acr oss the AC line , across t he DC bus , and
across each of the power fuses.
ATTENTION: If there is any voltage present, remove the source of the voltage. Check for voltages again before proceeding to the next step.
2. Remove the two bolts from the fuse and pull the fuse out.
3. Verify that the new fuse has the same rating as the old fuse (or check
your user manual for the appropriate fuse rating).
4. Secure the new fuse using the torques below:
Size of Bolt/Nut Torque
1/4 in (64mm) 5/16 in (79mm) 3/8 in (95mm) 1/2 in (127mm)
10 lb-ft 15 lb-ft 20 lb-ft 25 lb-ft
5. Repeat for each fuse to be replaced.
Figure 1 Replacing Power Fuses
AC Line Fuse for K-code RGU shown
Publication 2300-5.16 September 1999

Concluding Steps

After replacing the power fuses, check the unit for any tools or debris; then close the bay door. Discard the damaged fuses according to your company procedures and local ordinances.
Publication 2300-5.16 September 1999 PN 192893 (01)
Copyright 1999 of Rockwell International Corporation. Printed in the USA
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