Manual – MOVIPRO® SDC with DeviceNet Interface
119
10
Explanation of the parameters
Parameterization of MOVIPRO
®
– a manual reset is performed using the input terminal,
– a manual reset is performed using the serial interface (MOVITOOLS
®
MotionStudio, higher-level controller),
– there is a transition to 24 V backup mode, or the inverter is switched off.
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 waiting time between the moment an error occurs and the exe-
cution of an automatic reset.
P85x Scaling
actual speed value
Scaling actual speed value defines a user-specific display parameter
P001 User display
(page 90). For example, the user display is to be shown in s
-1
. 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. The scaling unit s
-1
is entered in
P852 User-de-
fined unit
.
P850 Scaling fac-
tor numerator
Setting range: 1 – 65535
P851 Scaling fac-
tor denominator
Setting range: 1 – 65535
P852 User-defined
unit
Factory setting: rpm
Up to eight ASCII characters; is displayed in
P001 User display
(page 90).
P86x Modulation
P860/P861 PWM
frequency 1/2
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. The inverter automatically switches back to lower switching
frequencies when the unit utilization reaches a specific level if the clock frequency for
parameter set 1/2 is not fixed to the set value using
P862/P863 PWM fixed 1/2
(page 119). The modulation frequency reduces switching losses in the output stage and,
consequently, unit utilization.
P862/P863 PWM
fix 1/2
Setting range: On/off
• On: Use P862/P863 = "ON" for parameter sets 1/2 to fix the PWM frequency set with
P860/P861 PWM frequency 1/2
when an automatic reduction of the PWM frequency
is undesirable (e.g. when output filters are used).
• Off: MOVIPRO
®
automatically reduces the set output frequency (down to a minimum
of 4 kHz) when there is a high level of thermal load on the output stage to avoid a
switch-off with the "Unit utilization" error.
279044491
P852
P850
P851
1
60
=
Actual
speed
(1500 min )
-1
001
25
USER
[1/s]
1
2
1
2
0
0
I