Advanced Energy MDX II User Manual page 186

®
Advanced Energy
Table 8-2. Panel LEDs and Fault Messages (Continued)
Problem Indicators
Passive Control Panel Fault
Panel LED On
BUS LOW "Bus 1 Low"
RIGHT
BUS LOW "Bus 2 Low"
LEFT
n/a "Code Not Accepted—
Mismatch"
n/a "HALO Mode
Incorrect"
8-6
Explanation
Message
Internal MDXII bus
1 voltage input line is
too low.
Internal MDXII bus
1 voltage input line
(30k unit only) is too
low.
An invalid lock code
was entered.
The HALO setting
that was in effect
when the recipe you
are trying to run was
programmed is not
the same as the
current halo setting.
Troubleshooting and Customer Support
Suggested Action
Press the STOP switch to
clear the fault message.
Inspect your input power
source to ensure that it is
connected correctly and
ensure that the bus 1 line
voltage is correct and that
all phases are present.
Cycle the contactor hold
function or cycle power
to the unit.
Press the STOP switch to
clear the fault message.
Inspect your input power
source to ensure that it is
connected correctly and
ensure that the bus 2 line
voltage is correct and that
all phases are present.
Cycle the contactor hold
function or cycle power
to the unit.
Re-enter the lock code
and ensure it is valid (see
"Locking the Control
Panel" on page 6-12).
Press the STOP switch to
clear the fault message.
Change the HALO
setting (see page 5-19).
5700262-R