4
Names of Parts Section 1-1
6. MANU (Manual Mode)
Lights when the auto/manual mode is set to manual mode.
7. (Key)
Lights when settings change protect is ON (i.e., when the U and D keys
are disabled by protected status.
Temperature Unit The temperature unit is displayed when parameters are set to display a tem-
perature. The display is determined by the currently selected “temperature
unit” parameter set value. c indicates °C and f indicates °F.
Flashes during ST operation.
1-1-3 Using the Keys
This section describes the basic functions of the front panel keys.
O Key Press this key to move between setting levels. The setting level is selected in
the following order: operation level: adjustment level, initial setting level, com-
munications setting level.
M Key Press this key to change parameters within a setting level.
The parameters can be reversed by holding down the key (moving one per
second in reverse order).
U Key Each press of this key increments the value displayed on the No. 2 display or
advances the setting. Holding the key down speeds up the incrementation.
D Key Each press of this key decrements values displayed on the No. 2 display or
reverses the setting. Holding the key down speeds up the incrementation.
O + M Keys Press these keys to change to the protect level. For details on operations
involving holding these keys down simultaneously, refer to 1-3 Setting Level
Configuration and Key Operations. For details on the protect level, refer to
SECTION 5 Parameters.
O + U Keys
O + D Keys
To restrict set value changes (in order to prevent accidental or incorrect oper-
ations), these key operations require simultaneously pressing the O key
along with U or D key.