TECO F33 Series, Instruction Manual, Page: 73 / 192

70 Functional Description
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 cur-
rent 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. 71 shows the characteristics with respect for Nomi-
nal Current and Speed in relation to the motor ventila-
tion type selected.
Fig. 71 I
2
t curves
Motor Identification Run [229]
This function is used when the VSD is put into operation
for the first time. To achieve an optimal control perform-
ance, fine tuning of the motor parameters using a
motor ID run is needed. During the test run the display
shows “Test Run” blinking.
To activate the Motor ID run, select “Short” 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 VSD can be operated
normally again, press the STOP/RESET key on the con-
trol panel.
During the Short ID run the motor shaft does not rotate.
The VSD measures the rotor and stator resistance.
.
Communication information
Motor Sound [22A]
Sets the sound characteristic of the VSD output stage
by changing the switching frequency and/or pattern.
Generally the motor noise will go down at higher switch-
ing frequencies.
Communication information
Modbus Instance no/DeviceNet no: 43048
Profibus slot/index 168/207
Fieldbus format UInt
Modbus format UInt
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.
Modbus Instance no/DeviceNet no: 43049
Profibus slot/index 168/208
Fieldbus format UInt
Modbus format UInt
NOTE: To run the VSD it is not mandatory for the ID RUN
to be executed, but without it the performance will not
be optimal.
NOTE: If the ID Run is aborted or not completed the
message “Interrupted!” will be displayed. The previous
data do not need to be changed in this case. Check that
the motor data are correct.
Default: F
E 0 Switching frequency 1.5 kHz
F 1 Switching frequency 3 kHz
G 2 Switching frequency 6 kHz
H 3
Switching frequency 6 kHz, random fre-
quency (+750 Hz)
Modbus Instance no/DeviceNet no: 43050
Profibus slot/index 168/209
Fieldbus format UInt
Modbus format UInt
229 Motor ID-Run
Stp M1: Off
A
22A Motor Sound
Stp M1: F
A