Magpowr PA-90 Installation Manual

All of the information herein is the exclusive proprietary property of Maxcess International, and is disclosed with the
understanding that it will be retained in confidence and will neither be duplicated nor copied in whole or in part nor
be used for any purpose other than for which disclosed.
Copyright 2004, all rights reserved.
Periodically there will be updates to this manual. The latest version is available at
1-800-MAGPOWR (624-7697).

INTRODUCTION

®
The MAGPOWR Model PA-90 power amplifier is intended for use with the DIGITRAC
®
EZ-TRAC for the control of electromagnetic clutches and brakes.

PA-90 INSTALLATION

The PA-90 power amplifier is to be installed inside the control. Set jumpers on JP1 for current range before
installation. Wiring to and from the control and power amp must be done with double or reinforced insulation or
protective screening which provides protective separation. All wiring outside the control enclosures should comply
with the essential requirements of the appropriate standard(s) and is the responsibility of the installer.
WARNING: DISCONNECT MAINS BEFORE OPENING ENCLOSURE

MAINTENANCE

The only maintenance that may be required on the PA-90 is fuse replacement. Replacement of any fuse requires
opening the enclosure, which circumvents the enclosure IP rating. To change a fuse:
On a PA-90 power amplifier mounted in the D2,
D2SLVMD, VTC, EZ or their variants:
1. Disconnect the supply mains.
2. Remove the two screws which retain the top cover.
3. Remove the top cover.
4. Remove and replace the blown fuse.
5. Re-install the top cover.
6. Reconnect supply mains.
850A234-1
10/04 Rev. B
222 W. Memorial Road, Oklahoma City, OK 73126-0508
Phone: 1-800-624-7697  Fax: 405-755-8425
www.magpowr.com  E-mail: magpowr@magpowr.com
INSTALLATION MANUAL
PA-90

Power Amplifier

On a PA-90 power amplifier mounted in the D2E,
VTCE, EZE or its variants:
1. Disconnect the supply mains.
2. Open the door by loosening the two
3. Remove and replace blown fuse on the PA-90
4. Close the door and retighten the
5. Reconnect supply mains.
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®
2, VERSATEC™ or
retaining screws.
retaining screws.
or by calling