Commissioning, 5 vector parameters – Sterling RT User Manual
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SV01H
Commissioning
4.5.5
Vector Parameters
Code
Possible Settings
IMPORTANT
No.
Name
Default Selection
(1)
Drive Mode
0
0 Constant V/Hz
Constant torque V/Hz control for general
applications
1 Variable V/Hz
Variable torque V/Hz control for centrifugal
pump and fan applications
2 Enhanced Constant V/Hz
For single or multiple motor applications that
require better performance than settings 0 or
1, but cannot use Vector mode, due to:
• Missing required motor data
• Vector mode causing unstable motor
operation
3 Enhanced Variable V/Hz
4 Vector Speed
For single-motor applications requiring higher
starting torque and speed regulation
5 Vector Torque
For single-motor applications requiring torque
control independent of speed
NOTE
To configure the drive for either Vector mode or Enhanced V/Hz mode:
• P300 = 4, 5:
- Set P302...P306 according to motor nameplate
- Set P399 = 1
- Make sure motor is cold (20° - 25° C) and apply a Start command
- Display will indicate
for about 40 seconds
- Once the calibration is complete, the display will indicate
; apply another
Start command to actually start the motor
- If an attempt is made to start the drive in Vector or Enhanced V/Hz mode before
performing the Motor Calibration, the drive will display
and will not
operate
• P300 = 2, 3: Same as above but only need to set P302…P304
(1)
Motor Rated Voltage
0
{V}
600
• Default setting = drive rating
• Set to motor nameplate data
(1)
Motor Rated Current
0.0
{A}
500.0
(1)
Motor Rated
Frequency
60
0
{Hz}
1000
Set to motor nameplate data
(1)
Motor Rated Speed
1750
300
{RPM}
65000
P 6
(1)
Motor Cosine Phi
0.80
0.40
0.99
NOTE
If motor cosine phi is not known, use one of the following formulas:
cos phi = motor Watts / (motor efficiency X P302 X P303 X 1.732)
cos phi = cos [ sin
1
(magnetizing current / motor current) ]
(1)
Motor Stator
Resistance
0.00
0.00
{
Ω}
64.00
• Will be automatically programmed by P399
• Changing these settings can adversely
affect performance. Contact factory
technical support prior to changing
(1)
Motor Stator
Inductance
0.0
0.0
{mH}
2000
P 0
Torque Limit
100
0
{%}
400
When P300 = 5, sets the maximum output
torque.
(1) Any changes to this parameter will not take effect until the drive is stopped