Replacing Dpu Fuses - Metso PDP Series Installation, Preparation And Adjustment

Replacing DPU Fuses

not place any pressure on the circuits near the battery.
5. Install the battery into the same connector from which the old battery
was removed (B1). Make sure that the (+) lead, the center of the
battery, plugs into the end pin of the connector marked with the (+) on
the board. The second lead (-) should go into the fourth pin on
connector B1.
6. Install the metal cover.
7. Install the DPU in the chassis using the appropriate procedure found
in Chapter 6," Starting a Standalone DPU," or "Replacing a DPU in a
Backup Pair."
The DPU has two fuses, located on the motherboard, marked F1 and F2.
Both fuses are subminiatures (resemble resistors). Fuse F1, 3A (Part number
014257), is used for external battery power. Fuse 2, 3A (Part number
014257), is used for 24V power. They are both mounted directly to the board
by their leads and plugged into sockets.
To change the fuses, follow the same procedure for changing the lithium
battery, as described in the previous section, locate and replace the fuses.
Metso Automation MAX Controls • • • • 277573 • • • •
DPU Battery and Fuse Maintenance
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