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Parameter
Menu 2
structure
2.11
Acceleration rate 1
{SE03, 0.24}
2.12
Acceleration rate 2
2.13
Acceleration rate 3
2.14
Acceleration rate 4
2.15
Acceleration rate 5
2.16
Acceleration rate 6
2.17
Acceleration rate 7
2.18
Acceleration rate 8
Bit
SP
Coding
Range
0 to MAX_RAMP_RATE s / (Pr 1.06 {SE02, 0.23} or Pr 2.39)
Default
5.000
Second motor
Pr 21.04 for Pr 2.11 {SE03, 0.24} only
parameter
Update rate
4 ms read
NOTE
Using low values (e.g. 0.100), can cause FbL trips. To avoid trips, increase Pr 3.56 Speed feedback loss window.
2.19
Jog acceleration rate
Bit
SP
Coding
Range
0 to MAX_RAMP_RATE s / (Pr 1.06 {SE02, 0.23} or Pr 2.39)
Default
5.000
Update rate
Background read
The jog acceleration rate is only used when accelerating towards the jog reference and when changing the jog reference.
2.20
Deceleration rate selector
Bit
SP
Coding
Range
0 to 9
Default
0
Update rate
4 ms read
The acceleration rate is selected as follows:
0
Ramp rate selection by terminal input
1 - 8
Ramp rate defined by parameter number, i.e. 1 = Pr 2.21 {SE04, 0.25}, 2 = Pr 2.22, etc.
9
Ramp rate selection by Pr 1.50
When Pr 2.20 is set to 0 the deceleration ramp rate selected depends on the state of bit Pr 2.35 to Pr 2.37. These bits are for control by digital inputs
such that ramp rates can be selected by external control. The ramp rate selected depends on the binary code generated by these bits as follows:
Pr 2.37
Pr 2.36
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
When Pr 2.20 is set to 9 the appropriate deceleration rate is automatically selected depending on the value of Pr 1.50, and so a deceleration rate can
be programmed to operate with each reference. Since the new ramp rate is selected with the new reference, the deceleration applies towards the
selected preset if the motor needs to decelerate to reach the preset.
38
Keypad and
Parameter x.00
display
FI
DE
Txt VM DP ND RA NC NV
3
FI
DE
Txt VM DP ND RA NC NV
3
FI
DE
Txt VM DP ND RA NC NV
Pr 2.35
Ramp defined by
0
Pr 2.21 {SE04, 0.25}
1
Pr 2.22
0
Pr 2.23
1
Pr 2.24
0
Pr 2.25
1
Pr 2.26
0
Pr 2.27
1
Pr 2.28
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Parameter description
Advanced parameter
format
descriptions
PT
US RW BU
1
1
1
PT
US RW BU
1
1
1
PT
US RW BU
1
1
1
Serial comms
Performance
protocol
PS
PS
PS
Mentor MP Advanced User Guide
Issue Number: 4
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