Acceleration Rate; Jog Acceleration Rate; Deceleration Rate Selector - Emerson 2202 Advanced User's Manual

Parameter
Menu 2 Introduction
x.00
Pr 2.34 Pr 2.33
0 0
0 0
0 1
0 1
1 0
1 0
1 1
1 1
When parameter Pr 2.10 is set to 9 the appropriate acceleration rate is automatically selected depending on the value of parameter Pr 1.50, and so
an acceleration rate can be programmed to operate with each reference. Since the new ramp rate is selected with the new reference, the acceleration
applies towards the selected preset if the motor needs to accelerate to reach the preset.
2.11

Acceleration rate 1 {03}

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 3200.0s/100 Hz (or s/10Hz or s/1000Hz if Pr 2.39 = 0 or 2)
Default 5.0
Second motor
Pr 21.04 for parameter Pr 2.11 only
parameter
Update rate 5ms
NOTE
When switching between preset speeds and using the preset acceleration ramps, the acceleration ramp used is the one associated to the target
preset speed, i.e. if switching from preset speed 3 to preset speed 4, acceleration rate 4 would be used.
If enabling and running to a preset speed using the Run Forward and Run Reverse terminals, the preset acceleration ramp used will be the one
associated to the preset speed being run to.
2.19

Jog acceleration rate

Bit SP
Coding
Range 0 to 3200.0s/100 Hz (or s/10Hz or s/1000Hz if Pr 2.39 = 0 or 2)
Default 0.2
Update rate 5ms
The jog acceleration rate is only used when accelerating towards the jog reference and when changing the jog reference.
There are eight acceleration rates programmable for normal operation, plus one for jogging. The ramp rates are expressed as a time for a change of
100 Hz on the ramp output, therefore with a programmed ramp time of 5 seconds the ramp output will reach 50 Hz from 0 in 2.5 seconds (depending
on the setting of Pr 2.39).
2.20

Deceleration rate selector

Bit SP
Coding
Range 0 to 9
Default 0
Update rate 5ms
The deceleration 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, 2 = Pr 2.22, etc.
9 Ramp rate selection by parameter Pr 1.50
When parameter Pr 2.20 is set to 0 the deceleration ramp rate selected depends on the state of bit parameters 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:
52
Parameter Keypad and
description format display
Pr 2.32 Ramp defined by
0 Pr 2.11
1 Pr 2.12
0 Pr 2.13
1 Pr 2.14
0 Pr 2.15
1 Pr 2.16
0 Pr 2.17
1 Pr 2.18
FI DE Txt VM DP ND
1
FI DE Txt VM DP ND
1
FI DE Txt VM DP ND
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Serial CT Modbus PLC Ladder
communications RTU programming
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1 1
Advanced parameter
CTSoft Menu 0
PS
1
PS
1
PS
1
Commander SK Advanced User Guide
Issue Number: 9
descriptions