D20MX INSTRUCTION MANUAL GE INFORMATION 55
D20MX Processor
Chapter 4: Powering-up and Testing
Powering-up an d Testing
Once you have made all field wiring and communication connections and have completed
the necessary hardware configuration, the next step is to power-up the D20MX and verify
that it is functioning properly.
Use this chapter to prepare for and correctly perform the power-up and other tests. This
chapter includes:
• What is needed to test: WESMAINT II+ facility, SHELL and SGConfig
• How to power-up the D20MX and conduct the BOOT Test: Power On Self-Test
• How to carry out a redundant system test
Before any of the tests and procedures in this section can be performed, a valid
configuration file must be loaded into the D20MX NVRAM.
If you have replaced the main board of the D20MX, then you need to restore the
configuration file so that diagnostic tests can be performed.
If this power-up and test procedure reveals that your D20MX is not functioning properly
due to software malfunction, then you need to download code and configuration files.
See the SGConfig online help.
Required for testing
The system components that are required for configuring and testing the D20MX are:
•WESMAINT II+ facility
•SHELL
• SGConfig application
To prevent burning out the main processor board, make two important checks before
switching on the D20MX:
• Check that the external power supply input level is correct for the Power Supply fitted
to the chassis. See section:
“Power supply” on page 24.
• If you have 125 V DC or 110V AC input, then jumpers Z22 and Z23 on the WESTERM
D20M+: 517 - 0225 or 517 - 0224 must be jumpered 2 - 3.
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