Installation and Maintenance Manual

ECM Overview and Setup
UNT-SVX07D-EN 61
Configuration Use Examples
Example 1. To view the value of parameters without
saving. In this case we wish to verify that the “Low Speed
Value” for Motor 1 is set correctly to 800 rpm.
We start with the ECM engine scrolling status display and
proceed as follows:
Example 2. We wish to change the change the value of
Low Speed to 820 rpm:
We will continue from the previous example as shown
below, using a long press to “save” the new desired value.
Note: If the display has timed out and returned to the
status loop, repeat Example 1 to arrive back at this
example’s starting point.
Example 3. We wish to double check to see if the value of
“820 rpm” has been saved.
Note: If the display has timed out and returned to the
status loop, repeat Example 1 and Example 2 to
arrive back at this example’s starting point.
Example 4. We wish to change the value of a protected
value on an electric heat unit.
It would appear that the value has been changed, but if we
check the value, we notice that the original value has been
retained.
Priority / Error Display
Under special conditions, the status display will interrupt
briefly to prioritize display of events:
Notes:
• During error displays, the user interface will be
disabled, until the error is removed or resolved.
• If changes are made to parameters and saved, most
settings take effect immediately. Any change to fan
speeds will take effect and cause the configuration
menu to exit immediately to begin tracking speeds via
the on-board tachometer.
• Where practical, the unit will offer “limp-in”
performance, but to ensure safe operation, certain unit
functions will be disabled. For example, if one motor
fails, the unit will display an error code, but the second
motor (if present) will continue to operate. However, to
ensure safe operation, the electric heat (if present) will
be disabled.
• If a error occurs while the configuration menu is in
effect, all unsaved values will be discarded and the
error codes will be displayed.
UNT-SVX07_-EN.book Page 61 Friday, April 27, 2012 9:40 AM