Control Techniques Digitax ST Advanced User's Manual page 80

Parameter
Menu 5
structure
5.01 Output frequency
Bit SP
Coding
Range ±1250.0 Hz
Update rate 250μs write
The output frequency is not controlled directly, and so the output frequency displayed in this parameter is calculated by measuring the frequency of
the controller reference frame.
5.02 Output voltage
Bit SP
Coding
Range 0 to AC_VOLTAGE_MAX V
Update rate Background write
This is the modulus of the r.m.s. line to line voltage at the inverter output at the drive output frequency.
5.03 Output power
Bit SP
Coding
Range ±POWER_MAX kW
Update rate Background write
The output power is the dot product of the output voltage and current vectors. Positive power indicates power flowing from the drive to the motor
(motoring) and negative power indicates power flowing from the motor to the drive (regen).
5.05 DC bus voltage
Bit SP
Coding
Range 0 to +DC_VOLTAGE_MAX V
Update rate Background write
Voltage across the internal DC bus of the drive.
5.07 Motor rated current
Bit SP
Coding
Range 0 to RATED_CURRENT_MAX A
Default Maximum current (i.e. the value of Pr 11.32)
Second motor
Pr 21.07
parameter
Update rate Background read
The rated current should be set at the motor nameplate value for rated current. The value of this parameter is used for current limits and motor
thermal protection.
5.08 Rated speed
Bit SP
Coding
Range 0.00 to 40,000.00 rpm
Default 3,000.00
Second motor
Pr 21.08
parameter
Update rate Background read
The Rated load rpm defines the rated speed of the motor and is only used in the motor thermal protection scheme (see Pr 4.16 on page 75.) and to
determine the speed used in the auto tuning inertia test (see Pr 5.12 on page 81).
80
Keypad and
Parameter x.00
display
FI DE Txt VM DP ND
1 0 1 1
FI DE Txt VM DP ND
1 1 1
FI DE Txt VM DP ND RA NC NV
1 1 2 1
FI DE Txt VM DP ND
1 1 1
FI DE Txt VM DP ND
1 2
FI DE Txt VM DP ND
2
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Parameter Advanced parameter
description format descriptions
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1 1
PT US RW BU
1 1
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1 1 1
RA NC NV PT US RW BU
1 1
Serial comms Electronic
protocol nameplate
PS
PS
PS
PS
1
PS
1
PS
1
Digitax ST Advanced User Guide
Issue Number: 1
Performance