SEW-Eurodrive MOVIPRO Ethernet/IP - Page 228

13
Parameter setting
Parameter descriptions
Manual – MOVIPRO
®
with EtherNet/IP™ or Modbus/TCP Fieldbus Interface
228
P850 Scaling factor numerator
Setting range: 1–65535
P851 Scaling factor denominator
Setting range: 1–65535
P852 User-defined unit
Factory setting: 1/min
The user unit can comprise a maximum of 8 ASCII characters. The user unit is shown
in the parameter P001User display (→2191).
P86. Modulation
P860/P861 PWM frequency 1/2
1
2
The parameter is only effective in the "VFC" operating mode.
Setting range: 4/8/12/16kHz
Sets the clock frequency on the device output for parameter set 1/2. The set clock fre-
quency can be permanently fixed with the parameter P862/P863 PWM fix 1/2
(→2228).
If the clock frequency is not permanently fixed to the set value, the device automatic-
ally switches back to lower clock frequencies when the unit utilization reaches a spe-
cific level. The modulation frequency reduces switching losses in the output stage and,
consequently, unit utilization.
P862/P863 PWM fix1/2
1
2
Setting range: On/Off
• Setting "On": Fixes the set clock frequency set in the parameter P860/P861
PWM‑frequency1/2 (→2228) for parameter set1/2. This prevents an automatic
reduction of the clock frequency (e.g. when using output filters).
• Setting "Off": The device automatically reduces the set output frequency (down to
minimum 4kHz) when there is a high level of thermal load on the output stage.
This is to avoid a switch-off of the device with the error message "Device utiliza-
tion".
P864 PWM frequency CFC
The parameter is effective only in "CFC and "Servo" operating modes.
Setting range: 4/8/16kHz
Sets the clock frequency on the device output for parameter set 1. The cycle fre-
quency is set to a fixed value and is not automatically reduced with high unit utiliza-
tion.
16998413/EN – 12/2016