SLX9000 Adjustable Frequency Drives User Manual
MN04003020E
For more information visit:
www.eaton.com
9-23
January 2009
Protections
2.6.7
Output voltage at zero frequency
ID606
This parameter defines the zero frequency voltage of the curve. See
Figure 9-17
.
2.6.8
Switching frequency
ID601
Motor noise can be minimized using a high switching frequency. Increasing the
switching frequency reduces the capacity of the drive.
Switching frequency for SLX9000: 1 – 16 kHz
2.6.9
2.6.10
Overvoltage controller
Undervoltage controller
ID607
ID608
These parameters allow the under-/overvoltage controllers to be switched out of
operation. This may be useful, for example, if the utility supply voltage varies more
than -15% to +10% and the application will not tolerate this over-/undervoltage. This
regulator controls the output frequency taking the supply fluctuations into account.
Note:
Over-/undervoltage trips may occur when controllers are switched out of
operation.
0
Controller switched off
1
Controller switched on
2.6.11 Identification
ID631
0
No action
1
ID no run
When ID no run is selected, the drive will perform an ID-run when it is started from
selected control place. Drive has to be started within 20 seconds, otherwise
identification is aborted.
The drive does not rotate the motor during ID no run. When ID run is ready, the drive
is stopped. Drive will start normally when the next start command is given.
The ID run improves the torque calculations and the automatic torque boost
function. It will also result in a better slip compensation in speed control (more
accurate RPM).
2.7.1
Response to 4 mA reference fault
ID700
0
No response
1
Warning
2
Fault, stop mode after fault according to parameter 2.1.12
3
Fault, stop mode after fault always by coasting
A warning or a fault action and message is generated if the 4 – 20 mA reference
signal is used and the signal falls below 3.5 mA for 5 seconds or below 0.5 mA for 0.5
seconds. The information can also be programmed into relay outputs.
Summary of Contents for Cutler-Hammer SLX9000 Series
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