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W W W . D U N I W A Y . C O M
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IV
Maintenance
A. Changing Fuses
The controller contains two fuses. Both fuses are held in the fuse assembly that is part of the pow-
er module located on the back panel of the controller. To change fuses, unplug the line cord from
the power entry module at the rear of the 921; locate the fuse block immediately below the line
cord socket. Press the tab of the fuse assembly and withdraw the fuse assembly from the power
module.
Turn the fuse assembly around so that the fuses are facing you. Check both fuses; replace the
burnt-out fuse with a fuse of the appropriate rating (refer to Specifications section). Reinsert the
fuse assembly into the power module; push it in until the ears click into place.
Replacement fuse type: 5 mm X 20 mm, regular 1 amp
manufacturer
fuse type
Bussman
GDB-1A or GDC-1A
Littlefuse
217 001 or 218 001
B. Schematic Diagrams
Because of the proprietary nature of our products, we do not supply schematic diagrams or soft-
ware listings. If you have any problem with operation or interface to any of our products, please
contact us; we will do everything we can to serve your needs.
TELEPHONE: 650-969-8811 TOLL-FREE (U.S. only): 800-446-8811 FAX: 650-965-0764 EMAIL: [email protected]
www.duniway.com
