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System Manual – MOVIDRIVE® compact Drive Inverters
3
Explanation of the parameters
Parameters
Five automatic resets are then possible.
•
OFF: No auto reset.
P842 Restart time
Setting range: 1 ... 3 ... 30 s
P842 is used to set the time to be waited between the time an error occurs and the
execution of an automatic reset.
P85x Scaling
actual speed value
Scaling of the actual speed value with SHELL only.
Scaling actual speed value sets a user-specific display parameter P001 User display.
For example, the user display is to be shown in 1/s. Such a setting requires a scaling
factor of 1/60. This means the numerator scaling factor has to be set to 1 and the
denominator scaling factor to 60. In P852 User-defined unit the scaling unit 1/s is en-
tered.
P850 Scaling
factor numerator
Setting range: 1 ... 65535 (can be set with SHELL only)
P851 Scaling
factor denominator
Setting range: 1 ... 65535 (can be set with SHELL only)
P852 User unit
Factory setting: 1/min (can be set with SHELL only)
Up to eight ASCII characters will be displayed in P001 User display .
P86x Modulation
P860 / P861 PWM
frequency 1 / 2
VFC
Setting range: 4 / 8 / 12 / 16 kHz
P860/P861 can be used in VFC mode to set the switching frequency at the inverter out-
put for parameter set 1 / 2. If the switching frequency for parameter set 1 / 2 is not fixed
to the set value with P862 PWM fix 1 / P863 PWM fix 2 , the inverter automatically
switches back to lower switching frequencies when the unit utilization reaches a specific
level. The modulation frequency reduces switching losses in the output stage and, con-
sequently, unit utilization.
P862 / P863 PWM
fix 1 / 2
Setting range: ON / OFF
•
ON: If an automatic reduction of the PWM frequency (e. g. by installing output filters)
is not wanted, use P862 / P863 = ON for parameter set 1 / 2 to fix the frequency set
with P860 PWM frequency 1 / P861 PWM frequency 2 .
DANGER!
Risk of crushing if the motor starts up unintentionally after an auto reset.
Severe or fatal injuries.
•
Do not use auto reset with drives where an automatic restart represents a danger
to people or units.
•
Perform a manual reset.
01640BEN
Figure 51: Scaling actual speed value (example)
P852
P850
P851
1
60
=
001 25
USER [1/s ]
ACTUAL VALUE
SPEED
(1500 rpm)
1
2
1
2
P6..
P60.
P600
Summary of Contents for MOVIDRIVE compact MCH41A
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