Model PDP DPU Installation, Preparation and Adjustment
Metso Automation MAX Controls
••••
277573
••••
6-6
unit in far enough to apply power to it.
7.
Set the backup DIP switches on the new DPU to match the unit which
was removed.
8.
Set the station number rotary switches to match the unit that was
removed.
9.
Set front panel mode switches 1, 2, and 8 to the left, and set mode
switch 4 to the right to demand a Cold startup.
10.
Connect the backup cable to the new DPU. Note that the cable end is
keyed so that it can only be inserted one way.
11.
Carefully slide the module forward, verifying that the connector pins
on the solder side of the module engage the corresponding contact
guides on the chassis assembly.
12.
When the contacts are engaged and resistance is felt, firmly press on
the front panel of the module front plate to make the simultaneous
connections at the front and rear. Apply pressure to the left of the
LEDs to place the force directly in line with the printed circuit card of
the module.
13.
Secure module to chassis assembly with the top and bottom lock down
screws on the front of the module.
14.
Before it begins
DPU Bus
communications, the DPU will initially
display FF as its front panel LEDs, progress through a series of steps
counting down from 0F to 06. Once it begins communicating, a
healthy DPU will display a rapidly flickering number whose value is
predominantly 07.
15.
Return mode switch 4 to the left.
16.
Reload the new DPU using maxTOOLS at a maxSTATION or the
Dump/Reload mode at an Operator Station.
17.
Acknowledge all alarms from the new DPU.
18.
Display Interaction Page 9 of the new DPU at a maxSTATION or
Operator Station. Locate the
Backup?
Field and type
y
for yes; locate
the
Startup?
Field and type
y
for yes.
19.
If the new DPU is the primary of the pair, make sure the secondary is
displaying the alarm DPU Pair is Running on Secondary. If the DPU
being replaced is the secondary, make sure the primary is displaying
the alarm Backup Link Timeout. This is done to make sure that there
are no higher priority alarms.
