Tweco HMC-410 - Manual (Page 68)

HMC-410
5-6 July 27, 2005
5.05 Diagnostics
Each test described in this section is selected in one of
two ways: (1) with the DIP switch on the controller board
or (2) with the Diagnostics Select soft switch (described
in the System Configuration section located in Operation
chapter). Selecting with the Diagnostics Select soft switch
is the preferred method because it does not require access
to the inside of the panel.
In order to select the Diagnostic Test with the DIP
switches, consult the Built in Test Definition table (on
following page). The position of the DIP switch for the
selected test is shown to the right of the test, with a 1
being OPEN (switch pressed on the OPEN side), and a 0
is closed. The toggle switches on the front panel are tied
into this DIP switch, so they will need to be set to the UP
position. Note that DIP switch 9 is not required and can
be kept in the OPEN position.
IMPORTANT: Note that by selecting a diagnostic with
the DIP switches, the configuration of the control unit
is changed. It is important to record the position of the
DIP switches before a test is selected so that the unit
can be reconfigured to its pre-test setup (typically all
OPEN).
DISP B is the center display. All tests will display the test
number in the upper display. If diagnostics are enabled,
but the combination of switches is not one of the shown
tests, the controller board will perform test number 60,
EEPROM Test, which will reset the panel’s configuration
to its default settings.