Clinton 870LCD, Service Manual

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SECTION V
ML870LCD-4A
PROGRAMMABLE LCD DISPLAY
The LCD display, shown in fig. below is used to program and set the various parameters of the
870LCD; SPEEDS, TIMERS, COUNTERS, and TOGGLE SWITCHES.
Two (2) different modes of operation are
available. They are:
1. Operating Mode
2. Programming Mode
When power is turned on, the display
is in the operating mode.
There are two (2) groups of parameters that are accessed in different ways. They are : (1) param-
eters with direct access and (2) hidden parameters with indirect access. In addition a master reset
is available to reset all parameters to their default values.
A. DIRECT ACCESS PARAMETERS
The direct access parameters are divided into four (4) groups. They are (1) SPEEDS, (2)
TIMERS, (3) COUNTERS, and (4) TOGGLE SWITCHES. Table 5-1 describes each parameter,
shows the default value and range of adjustment for each parameter.
To change a parameter, follow the sequence described below.
1. Press the key to enter the programming mode. Continue pressing this key until the
parameter group that is to be changed is displayed. As an alternative; press the key to enter
the programming mode and display the last changed parameter.
2. Press the key to step to the next parameter in the selected group.
3. Press the key to increase or the key to decrease the contents of the displayed
parameter. Both keys are used to toggle parameters between states in the Toggle Switches
group. Hold the key closed to make the display step automatically.
4. Press the key to return to the operating mode.