Control Techniques Digitax ST Advanced User's Manual page 120

Parameter
Menu 9
structure
Pr 9.21 Mode
0 Zero at power-up
1 Last value at power-up
Zero at power-up and only change
2
when drive running
Last value at power-up and only
3
change when drive running
9.22 Motorized pot bipolar select
Bit SP
Coding
1
Default 0
Update rate 4ms x number of menu 9 or 12 functions active read
When this bit is set to 0 the motorized pot output is limited to positive values only (i.e. 0 to 100.0%). Setting it to 1 allows negative outputs (i.e. ±100.0
%).
9.23 Motorized pot rate
Bit SP
Coding
Range 0 to 250 s
Default 20
Update rate Background read
This parameter defines the time taken for the motorized pot function to ramp from 0 to 100.0%. Twice this time will be taken to adjust the output from
-100.0 % to +100.0 %.
9.24 Motorized pot scale factor
Bit SP
Coding
Range 0.000 to 4.000
Default 1.000
Update rate 4ms x number of menu 9 or 12 functions active read
This parameter can be used to restrict the output of the motorized pot to operate over a reduced range so that it can be used as a trim, for example.
9.25 Motorized pot destination
Bit SP
Coding
Range Pr 0.00 to Pr 21.51
Default Pr 0.00
Update rate Read on reset
9.26 Motorized pot up
Bit SP
Coding
1
Default 0
Update rate 4ms x number of menu 9 or 12 functions active read
120
Keypad and
Parameter x.00
display
Reset to zero at each power-up.
Up, down and reset are active at all times.
Set to value at power-down when drive powered-up.
Up, down and reset are active at all times.
Reset to zero at each power-up.
Up and down are only active when the drive is running (i.e. inverter active).
Reset is active at all times.
Set to value at power-down when drive powered-up.
Up and down are only active when the drive is running (i.e. inverter active).
Reset is active at all times.
FI DE Txt VM DP ND
FI DE Txt VM DP ND
FI DE Txt VM DP ND
3
FI DE Txt VM DP ND
1 2
FI DE Txt VM DP ND
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Parameter Advanced parameter
description format descriptions
Comments
RA NC NV PT US RW BU
1
RA NC NV PT US RW BU
1
RA NC NV PT US RW BU
1
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1
Serial comms Electronic
protocol nameplate
PS
1
PS
1 1
PS
1 1
PS
1 1
PS
1
Digitax ST Advanced User Guide
Performance
Issue Number: 1