Control Techniques Digitax ST - Menu 2: Ramps

Menu 2
Parameter
structure
Keypad and
display
Parameter x.00
Parameter
description format
Advanced parameter
descriptions
Serial comms
protocol
Electronic
nameplate
Performance
34 Digitax ST Advanced User Guide
www.controltechniques.com Issue Number: 1
5.4 Menu 2: Ramps
The pre-ramp speed reference passes through the ramp block controlled by menu 2 before being used by the drive as an input to the speed
controller. The ramp block includes: linear ramps, an S ramp function for ramped acceleration and deceleration, deceleration ramp control to prevent
rises in the DC bus voltage within the drive that would cause an over-voltage trip if no braking resistor is installed.
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
Acceleration rate select bits
2.11
Acceleration rate 1
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
Acceleration rates 1 ~ 8
1.50
3
4
1
2
7
5
6
Preset reference
selected indicator
2.19
Jog acceleration
rate
1.13
Jog selected
indicator
1.03
Pre-ramp speed
reference
2.03
Ramp hold
2.04
Ramp mode
select*
N
t
N
t
Acceleration
Reverse
accel. rate
Forward
accel. rate
Ramp control
2.10
Acceleration
rate selector
2.34
2.32
2.33
2.32
0.XX
0.XX
Key
Read-write (RW)
parameter
Read-only (RO)
parameter
Input
terminals
Output
terminals
The parameters are all shown at their default settings
8
Figure 5-2 Menu 2 logic diagram