36
Unidrive M200-201 Quick Start Guide
Issue Number: 7
Defines the mode used by the ramp system.
0:
Fast ramp
1:
Standard ramp
2:
Standard ramp with motor voltage boost
3:
Fast ramp with motor voltage boost
Fast ramp is linear deceleration at programmed rate, normally used when a braking resistor is
installed.
Standard ramp is controlled deceleration to prevent DC bus over-voltage trips, normally used when
there is no braking resistor installed.
If a high motor voltage mode is selected, deceleration rates can be faster for a given inertia but motor
temperatures will be higher.
Setting Pr
29
to 0 allows the user to disable the ramps. This is generally used when the drive is
required to closely follow a speed reference which already contains acceleration and deceleration
ramps.
* Only a value of 3 or 4 in this parameter is saved.
If Pr
30
is equal to 1 or 2, this value is not transferred to the EEPROM or the drive. If Pr
30
is set to a
3 or 4 the value is transferred.
For further information, please refer to Chapter 9
28
Ramp Mode Select
RW
Txt
US
OL
Ú
Fast (0), Std (1), Std.bst (2),
Fst.bst (3)
Ö
Std (1)
RFC-A
29
Ramp Enable
RW
Bit
US
OL
Ú
Ö
RFC-A
Off (0) or On (1)
On (1)
30
Parameter Cloning
RW
Txt
NC
US*
OL
Ú
NonE (0), rEAd (1), Prog (2),
Auto (3), boot (4)
Ö
NonE (0)
RFC-A
Parameter string
Parameter value
Comment
NonE
0
Inactive
rEAd
1
Read parameter set from the NV Media Card
Prog
2
Programming a parameter set to the NV Media Card
Auto
3
Auto save
boot
4
Boot mode
