Danfoss VLT HVAC Drive FC 131 Programming Manual page 65

VLT® HVAC Drive FC 131
Programming Guide
Enter acceleration time from 0 Hz to parameter 1-23 Motor Frequency if asynchronous motor is selected. Enter acceleration time from
0 RPM to parameter 1-25 Motor Nominal Speed if PM motor is selected. Select a ramp-up time such that the output current does not
exceed the current limit in parameter 4-18 Current Limit during ramping. See ramp-down time in parameter 3-42 Ramp 1 Ramp Down
Time.
Table 104: Range:
Min: 0.01 s Max: 3600 s
3-42 Ramp 1 Ramp Down Time
Default value: Configuration dependent
Conversion index: -2
If asynchronous motor is selected, enter deceleration time from parameter 1-23 Motor Frequency to 0 Hz. If PM motor is selected,
enter deceleration time from parameter 1-25 Motor Nominal Speed to 0 RPM. Select a ramp-down time to avoid tripping on overvolt-
age in the DC-link.
Table 105: Range:
Min: 0.01 s Max: 3600 s
4.5.4 3-5* Ramp 2
This parameter group configures ramp 2 parameters.
3-51 Ramp 2 Ramp Up Time
Default value: Configuration dependent
Conversion index: -2
If asynchronous motor is selected, enter acceleration time from 0 Hz to parameter 1-23 Motor Frequency. If PM motor is selected,
enter acceleration time from 0 RPM to parameter 1-25 Motor Nominal Speed. Select a ramp-up time such that the output current
does not exceed the current limit in parameter 4-18 Current Limit during ramping up.
Table 106: Range:
Min: 0.01 s Max: 3600 s
3-52 Ramp 2 Ramp Down Time
Default value: Configuration dependent
Conversion index: -2
Enter deceleration time from parameter 1-25 Motor Nominal Speed to 0 RPM. Select a ramp-down time such that the output current
does not exceed the current limit in parameter 4-18 Current Limit during ramping down.
Table 107: Range:
Min: 0.01 s Max: 3600 s
4.5.5 3-8* Other Ramps
3-80 Jog Ramp Time
Default value: Configuration dependent
Conversion index: -2
Enter the jog ramp time, which is the acceleration/deceleration time between 0 Hz to parameter 1-23 Motor Frequency. Ensure that
the resulting output current required for the given jog ramp time does not exceed the current limit in parameter 4-18 Current Limit.
The jog ramp time starts after activation of a jog signal via the control panel, a selected digital input, or the serial communication
port.
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Default value: Configuration dependent
Parameter type: Range
Data type: u_int32
Default value: Configuration dependent
Parameter type: Range
Data type: u_int32
Default value: Configuration dependent
Parameter type: Range
Data type: u_int32
Default value: Configuration dependent
Parameter type: Range
Data type: u_int32
2-setup: All setups
Change during operation: True
2-setup: All setups
Change during operation: True
2-setup: All setups
Change during operation: True
2-setup: All setups
Change during operation: True
AU370727746889en-000101 / 130R0994 | 65
Parameters