Control Techniques Digitax ST - Page 203

Parameter
structure
Keypad and
display
Parameter x.00
Parameter
description format
Advanced parameter
descriptions
Serial comms
protocol
Electronic
nameplate
Performance
Menu 21
Digitax ST Advanced User Guide 203
Issue Number: 1 www.controltechniques.com
The bit parameters with lower numbers have priority over those with higher numbers.
Pr 1.49 and Pr 1.50 then define the reference as follows:
Keypad reference
If Keypad reference is selected the drive sequencer is controlled directly by the keypad keys and the keypad reference parameter (Pr 1.17) is
selected. The sequencing bits, Pr 6.30 to Pr 6.34, have no effect and jog is disabled.
Reference selected by timer
The presets are selected automatically in turn. Pr 1.16 defines the time between each change.
Pr 1.49 Pr 1.50 Reference
1 1 Analog reference 1
1 >1 Preset defined by Pr 1.50
2 1 Analog reference 2
2 >1 Preset defined by Pr 1.50
3 x Preset defined by Pr 1.50
4 x Keypad reference
5 x Precision reference
21.04 Acceleration rate
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
3111
Range 0.000 to 3200.000 s/1000rpm
Default 0.200
Normal
parameter
Pr 2.11
Update rate Background read
21.05 Deceleration rate
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
3111
Range 0.000 to 3200.000 s/1000rpm
Default 0.200
Normal
parameter
Pr 2.21
Update rate Background read
21.07 Rated current
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
12 1 111
Range 0 to RATED_CURRENT_MAX A
Default Maximum current (i.e. the value of Pr 11.32)
Normal
parameter
Pr 5.07
Update rate Background read
21.08 Rated speed
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
2111
Range 0.00 to 40,000.00 rpm
Default 3000.00
Normal
parameter
Pr 5.08
Update rate Background read