![Danfoss VLT HVACDrive Instruction Manual Download Page 91](http://html1.mh-extra.com/html/danfoss/vlt-hvacdrive/vlt-hvacdrive_instruction-manual_3860104091.webp)
0-71 Date Format
Option:
Function:
Sets the date format to be used in the LCP.
[0] *
YYYY-MM-DD
[1] *
DD-MM-YYYY
[2]
MM/DD/YYYY
0-72 Time Format
Option:
Function:
Sets the time format to be used in the LCP.
[0] *
24 h
[1]
12 h
0-74 DST/Summertime
Option:
Function:
Choose how Daylight Saving Time/Summertime should be handled. For manual DST/Summertime
enter the start date and end date in par. 0-76
and par. 0-77
[0] *
OFF
[2]
Manual
0-76 DST/Summertime Start
Range:
Function:
Application
dependent*
[Application dependant]
0-77 DST/Summertime End
Range:
Function:
Application
dependent*
[Application dependant]
1-00 Configuration Mode
Option:
Function:
[0] *
Open-loop
Motor speed is determined by applying a speed reference or by setting desired speed when in Hand
Mode.
Open-loop is also used if the adjustable frequency drive is part of a closed-loop control system based
on an external PID controller providing a speed reference signal as output.
[3]
Closed-loop
Motor speed will be determined by a reference from the built-in PID controller varying the motor
speed as part of a closed-loop control process (e.g., constant pressure or flow). The PID controller
must be configured in par. 20-** or via the function set-ups accessed by pressing the [Quick Menu]
button.
NOTE!
This parameter cannot be changed when the motor is running.
VLT
®
HVAC Drive Instruction Manual
7 How to Program the Adjustable Frequency
Drive
MG.11.AB.22 - VLT
®
is a registered Danfoss trademark
7-13
7