Model PDP Series 200 maxDPU4F Hardware Guide
Metso Automation
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278705
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7-4
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IOM - Green
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I/O - Off
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CP – Blinking Green/Yellow
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State – Green (when Secondary becomes operational, the Secondary
State LED will be Yellow)
10. Use the DPU4F Detailed Status Display to verify that the DPU is
operational. The Primary DPU State should be Active StandAlone.
11. Repeat steps 2 to 10 for the Secondary DPU. The Primary DPU should
remain Active StandAlone and the Secondary should be Inactive
StandAlone.
12. Acknowledge all DPU alarms and verify that they clear.
13. Load the Primary DPU using the maxDPUTools utility program from the
maxSTATION.
14. Enable Backup and make sure the Secondary DPU properly warms up.
15. Utilize the Unfreeze feature to allow all or selective outputs to go to their
new computed values.
Replacing a DPU in a Backup Pair
When replacing a DPU in a backup pair, it is necessary to prevent the new
unit from gaining control until it is properly configured and up to date.
Perform the following steps to ensure that an unexpected failover does not
occur during the replacement process.
To replace a DPU in a backup pair:
1. Make sure the DPU that is to remain in place is active and there are no
severe outstanding alarms.
2. Pull the DPU being replaced far enough out of its chassis to disconnect
power.
3. Remove the Backup Cable, Network, “A” Cable, and optionally Network
“B” Cable from the extracted DPU.
4. Remove the DPU from the chassis.
5. Either move the CompactFlash from the original DPU to the replacement
DPU or configure the new CompactFlash using the DPU4FSetup utility.
It is very important that the configuration file on the CompactFlash have
the proper DPU name and IP address and other configuration parameters.
Summary of Contents for PDP 400 maxDPU4F Series
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