Checks With The Unit Powered On - Advanced Energy MDX II User Manual

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3. Ensure that the unit is connected to its input power source (see "Input Power Connection"
on page 4-7).
4. Ensure that input power meets specifications (see "Specifications" on page 3-1).
5. Ensure that no system-related circuit breakers are tripped.
6. Ensure that all unit connectors are installed correctly and fastened tightly.
7. If your unit has a serial port, check the position of the DIP switches against the addressing
information (see "Addresses and Baud Rates" on page 7-5).

CHECKS WITH THE UNIT POWERED ON

1. Check the unit's input and remote power connections to ensure the proper power is being
supplied to the unit (see "Installation" on page 4-1).
2. Determine whether the cooling fans are functioning. If the fans are not functioning
correctly, call AE Customer Support.
3. Ensure that your cabinet provides adequate ventilation for all the units in the cabinet (see
"Cabinet Design" on page 4-5).
4. Check the LEDs on the passive front panel to ensure that the INPUT POWER and
OUTPUT POWER LEDs are lit.
5. Check for other lit LEDS, which indicate a problem (see Table 8-2 on page 8-5).
6. If you suspect an LED is malfunctioning, cycle the MDXII unit's power off and on.
7. If you are using an active front panel or an active remote panel, verify that the output
display screen information is displayed.
a. If the display is blank, call AE Customer Support.
b. If the display screen shows a fault message, see Table 8-2 on page 8-5.
8-2 Troubleshooting and Customer Support 5700262-R