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CG Drives & Automation,01-5326-01r3b
FFunctional Description
83
Motor ventilation [228]
Parameter for setting the type of motor ventilation. Affects
the characteristics of the I
2
t motor protection by lowering
the actual overload current at lower speeds.
Communication information
When the motor has no cooling fan, None is selected and
the current level is limited to 55% of rated motor current.
With a motor with a shaft mounted fan, Self is selected and
the current for overload is limited to 87% from 20% of
synchronous speed. At lower speed, the overload current
allowed will be smaller.
When the motor has an external cooling fan, Forced is
selected and the overload current allowed starts at 90% from
rated motor current at zero speed, up to nominal motor
current at 70% of synchronous speed.
Fig. 78 shows the characteristics with respect for Nominal
Current and Speed in relation to the motor ventilation type
selected.
Fig. 78 I
2
t curves
Motor Identification Run [229]
This function is used when the AC drive is put into
operation for the first time. To achieve an optimal control
performance, fine tuning of the motor parameters using a
motor ID run is needed. During the test run the display
shows “Test Run” flashing.
To activate the Motor ID run, select either “Short” or
“Extended” and press Enter. Then press RunL or RunR on
the control panel to start the ID run. If menu
“[219] Rotation” is set to L the RunR key is inactive and
vice versa. The ID run can be aborted by giving a Stop
command via the control panel or Enable input. The
parameter will automatically return to OFF when the test is
completed. The message “Test Run OK!” is displayed.
Before the AC drive can be operated normally again, press
the STOP/RESET key on the control panel.
During the Short ID run the motor shaft does not rotate.
The AC drive measures the rotor and stator resistance.
During the Extended ID run the motor is powered on and
rotates. The AC drive measures the rotor and stator
resistance as well as the induction and the inertia for the
motor.
Communication information
Default:
Self
None
0 Limited I
2
t overload curve.
Self
1
Normal I
2
t overload curve. Means that the
motor stands lower current at low speed.
Forced
2
Expanded I
2
t overload curve. Means that the
motor stands almost the whole current also
at lower speed.
Modbus Instance no/DeviceNet no:
43048
Profibus slot/index
168/207
EtherCAT index (hex)
4be8
Profinet IO index
19432
Fieldbus format
UInt
Modbus format
UInt
228 Motor Vent
Stp
M1:
Self
1.00
0.90
0.87
0.55
0.20
0.70
2.00
xSync Speed
xI
nom
for I
2
t
Forced
Self
None
Default:
Off, see Note
Off
0
Not active
Short
1
Parameters are measured with injected DC
current. No rotation of the shaft will occur.
Extended
2
Additional measurements, not possible to
perform with DC current, are done directly
after a short ID run. The shaft will rotate
and must be disconnected from the load.
Modbus Instance no/DeviceNet no:
43049
Profibus slot/index
168/208
EtherCAT index (hex)
4be9
Profinet IO index
19433
Fieldbus format
UInt
Modbus format
UInt
WARNING!
During the extended ID RUN, the motor will
rotate. Take safety measures to avoid
unforeseen dangerous situations.
NOTE: To run the AC drive it is not mandatory for the ID
RUN to be executed, but without it the performance will
not be optimal.
229 Motor ID-Run
Stp
M1:
Off
9(0R'ULYH 96, 9(0 U
Содержание VEMoDRIVE VSI 2.0 HD
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Страница 40: ...38 Installation CG Drives Automation 01 5326 01r3b 9 0R ULYH 96 9 0 U...
Страница 52: ...50 Getting Started CG Drives Automation 01 5326 01r3b 9 0R ULYH 96 9 0 U...
Страница 64: ...62 EMC and standards CG Drives Automation 01 5326 01r3b 9 0R ULYH 96 9 0 U...
Страница 142: ...140 Functional Description CG Drives Automation 01 5326 01r3b 9 0R ULYH 96 9 0 U...
Страница 198: ...196 CG Drives Automation 01 5326 01r3b 9 0R ULYH 96 9 0 U...
Страница 206: ...204 Troubleshooting Diagnoses and Maintenance CG Drives Automation 01 5326 01r3b 9 0R ULYH 96 9 0 U...
Страница 232: ...230 Technical Data CG Drives Automation 01 5326 01r3b 9 0R ULYH 96 9 0 U...
Страница 238: ...236 Menu List CG Drives Automation 01 5326 01r3b 9 0R ULYH 96 9 0 U...
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