Under certain circumstances, the inverter may reduce the Pulse frequency to provide
protection against over-temperature (see P0290, Level 3).
Minimum of pulse frequency depends on P1082 Max. frequency and P0310 Motor
Reverse output phase sequence
Changes direction of motor rotation without changing setpoint polarity.
Select motor data identification
Performs stator resistance measuring.
0=No measurement – (P0350 setting will be used)
1=Stator resistance measurement - (Overwrites P0350 setting)
2=Stator resistance measurement. This does not overwrite the values already
calculated.– (original P0350 setting will be used)
Motor data must be correctly entered before stator resistance measurement is initiated.
Once enabled (P1910 =1) A0541 will be generated warning that the stator resistance
measurement will be performed at next ON command.
If setting 1 is selected, the manual/calculated value for the stator resistance (see P0350) is
If setting 2 is selected, the values already calculated are not overwritten.
Identified stator resistance
Displays measured stator resistance value (line-to-line) in Ohms (measured using P1910 =
1 or 2).
Full-scale frequency setting used by serial link, analog I/O. This corresponds to 4000H.
Reverse phase sequence.
5. SYSTEM PARAMETERS
MICROMASTER 420 Operating Instructions
♦ ♦ ♦ ♦ P0003 User
♦ ♦ ♦ ♦ P0004 Setting
♦ ♦ ♦ ♦ Changeable
♦ ♦ ♦ ♦ Status