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4-1 General
Replacement controllers are available on an advance
exchange
basis
through
information is provided to aid the operator in
determining malfunctions and corrective steps to be
taken.
WARNING
Voltages developed in the unit are dangerous and may
be fatal. Service must be performed by authorized
personnel only.
4-2 Error messages
For a certain type of failure, the controller will self-
diagnose the error and the following messages will be
displayed.
The controller signals the error occurred by means of a
diagnostic LED located on the board, and on the
RS 232 port.
The LED blinks in a coded mode:
it flashes a number of time equal to the error
code (see the following table) and then stays off, and
so on.
Varian.
If
necessary,
Error Code Table
LED
BLINKING
NUMBER
0
No error
1
Output current> 15 A
2
Not connected pump
3
Output current > 1.5 A for 15 sec.
4
Bearing temperature > 60 °C
5
Heat exchanger temperature
> 60 °C
6
Normal not reached at run up time
7
Input voltage < 16 V for 5 sec.
8
Operating voltage < 10 V for 5 sec.
9
Vp voltage 8V lower than nominal for 5
sec.
10
Soft start ramp not ended within the
expected time
4-3 Accessories and spare parts
DESCRIPTION
Cable 60 cm long with connector
8
SECTION IV - MAINTENANCE
DESCRIPTION
PART NUMBER
969-9868
87-900-879-01 (A)
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