Elettronica Santerno SINUS/ISD 200 S-0.75, User Manual, Page: 73 / 206

SINUS/ISD 15P0082B8
USER MANUAL
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6.4.1.8 CURRENT FEEDBACK
This function block allows the user to
match the inverter’s current rating to
the motor under control. The inverter
needs to be programmed with the
motor full-load and no-load
(magnetising) rms line current values.
From this information, magnetising
(flux producing) and torque producing
motor current diagnostics can be
generated. MMI Menu Map
1
SETUP PARAMETERS
2
FUNCTION BLOCKS
3
MOTOR CONTROL
4
CURRENT FEEDBACK
FULL LOAD CALIB
NO LOAD CALIB
POWER FACTOR
MOTOR CURRENT
MOTOR CURRENT
I MAGNETISING
I MAGNETISING
I TORQUE
I TORQUE
LOAD
FIELD
CURRENT FEEDBACK CURRENT FEEDBACK
MOTOR CURRENT [ 66] ––
0.00 %
MOTOR CURRENT [ 67] ––
0.0 A
I MAGNETISING [ 68] ––
0.00 %
I MAGNETISING [ 69] ––
0.0 A
I TORQUE [ 70] ––
0.00 %
I TORQUE [ 71] ––
0.0 A
LOAD [ 72] –– 0.00 %
FIELD [ 73] –– 0.00 %
**3.4 A – [ 64] FULL LOAD CALIB ––
**1.9 A –– [ 65] NO LOAD CALIB ––
0.80 –– [242] POWER FACTOR ––
Parameter Descriptions Parameter Descriptions
FULL LOAD CALIB FULL LOAD CALIB Range: 0.0 to 1000.0 A
Set this to the motor nameplate full-load rms line current. The parameter is internally
clamped within the range of 25% to 100% of the inverter current rating.
NO LOAD CALIB
NO LOAD CALIB Range: 0.0 to 1000.0 A
Set this to the motor no-load rms line current. This is normally between 30% to 40% of
the motor nameplate full-load rms line current. However for small motors this
proportion can be much higher. If in doubt, this information can be obtained from the
motor manufacturer. Alternatively, the parameter should be set to rms line current
drawn from the Inverter when running the motor under no-load at base frequency.
The value of NO LOAD CALIB is internally clamped in the inverter to be within 10% to
90% of the FULL LOAD CALIB setting.
POWER FACTOR
POWER FACTOR Range: 0.50 to 0.95
Set this to the motor power factor rating given on the nameplate.
MOTOR CURRENT
MOTOR CURRENT Range: xxx.xh % (h)
This diagnostic contains the level of rms line current being drawn from the inverter and
is seen as a % of the FULL LOAD CALIB setting.
MOTOR CURRENT
MOTOR CURRENT Range: xxxx.x A
This diagnostic contains the level of rms line current being drawn from the Inverter.
I MAGNETISING
I MAGNETISING Range: xxx.xh % (h)
This diagnostic contains the level of magnetising (flux producing) rms line current
component being drawn from the inverter and is seen as a % of the FULL LOAD
CALIB setting.
I MAGNETISING
I MAGNETISING Range: xxxx.x A
This diagnostic contains the level of magnetising (flux producing) rms line current
component being drawn from the Inverter.