Application Settings; Timer Functions - Honeywell HVAC400x Applications Manual

P3.10.13 AUTORESET: UNDERLOAD FAULT (ID 738)
You can use this parameter to enable the automatic reset after an underload fault.
P3.10.14 AUTORESET: PID SUPERVISION FAULT (ID 15538)
You can use this parameter to select if autoreset is permitted for the fault.
10.11

Application Settings

P3.11.1 °C/°F SELECTION (ID 1197)
You can use this parameter to set the temperature measuring unit.
The system shows all the temperature-related parameters and monitoring values in the set unit.
P3.11.2 KW/HP SELECTION (ID 1198)
You can use this parameter to set the power measuring unit.
The system shows all the power-related parameters and monitoring values in the set unit.
P3.11.3 LOC/REM BUTTON CONFIGURATION (ID 1195)
You can use this parameter to set the values of the LOC/REM button.
This parameter tells which selections show when you push the LOC/REM button.
• Local / Remote
• Control Page
• Change Direction (only visible in keypad control)
P3.11.4 PASSWORD (ID 1900)
You can use this parameter to set the administrator password.
10.12

Timer Functions

10.12.1 Timer Functions
Timer functions include five intervals and three timers (time channels). The timer functions make it possible for the
internal RTC (Real-Time Clock) to control functions. All the functions that can be controlled with a digital input, can
also be controlled with the RTC, with time channels 1-3. It is not necessary to have an external PLC to control a
digital input. You can program the closed and opened intervals of the input internally.
To get the best results of the timer functions, install a battery, and make the settings of the Real-Time Clock
carefully in the Start-up wizard.
NOTE: We do not recommend that you use the timer functions without an auxiliary battery. If the RTC has no
battery, the time and date settings of the drive will be reset at each power-down.
TIME CHANNELS
You can assign the output of the interval and/or timer functions to time channels 1-3. You can use the time
channels to control on/off type functions, for example relay outputs or digital inputs. To configure the on/off logic of
the time channels, assign intervals and/or timers to them. A time channel can be controlled by many different
intervals or timers (P3.5.x time channels).
HVAC400X – APPLICATION MANUAL
135 EN2B-0417GE51 R0719