Operating instructions

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MM420 Parameter List 04/02

MICROMASTER 420 Parameter List

18 6SE6400-5BA00-0BP0

r0055 CO/BO: Act. control word 2 Min: -

Datatype: U16 Unit: - Def: -

P-Group: COMMANDS Max: -

Displays additional control word of inverter and can be used to diagnose which commands are active.

Bitfields:

Bit00 Fixed frequency Bit 0 0 NO

1 YES

Bit01 Fixed frequency Bit 1 0 NO

1 YES

Bit02 Fixed frequency Bit 2 0 NO

1 YES

Bit08 PID enabled 0 NO

1 YES

Bit09 DC brake enabled 0 NO

1 YES

Bit13 External fault 1 0 YES

1NO

Details:

See description of seven-segment display given in the "Introduction to MICROMASTER System

Parameters" in this handbook.

r0056 CO/BO: Status of motor control Min: -

Datatype: U16 Unit: - Def: -

P-Group: CONTROL Max: -

Displays status of motor control (MM420: V/f status), which can be used to diagnose inverter status.

Bitfields:

Bit00 Init. control finished 0 NO

1 YES

Bit01 Motor demagnetizing finished 0 NO

1 YES

Bit02 Pulses enabled 0 NO

1 YES

Bit03 Voltage soft start select 0 NO

1 YES

Bit04 Motor excitation finished 0 NO

1 YES

Bit05 Starting boost active 0 NO

1 YES

Bit06 Acceleration boost active 0 NO

1 YES

Bit07 Frequency is negative 0 NO

1 YES

Bit08 Field weakening active 0 NO

1 YES

Bit09 Volts setpoint limited 0 NO

1 YES

Bit10 Slip frequency limited 0 NO

1 YES

Bit11 F_out > F_max Freq. limited 0 NO

1 YES

Bit12 Phase reversal selected 0 NO

1 YES

Bit13 I-max controller active 0 NO

1 YES

Bit14 Vdc-max controller active 0 NO

1 YES

Bit15 KIB (Vdc-min control) active 0 NO

1 YES

Details:

See description of seven-segment display given in the introduction.

r0067 CO: Act. output current limit Min: -

Datatype: Float Unit: A Def: -

P-Group: CONTROL Max: -

Displays valid maximum output current of inverter.

This value is influenced by P0640 (max. output current), the derating characteristics and the thermal motor

and inverter protection.

Dependency:

P0610 (motor I2t temperature reaction) defines reaction when limit is reached.

Note:

Normally, current limit = rated motor current (P0305) x motor current limit (P0640). It is less than or equal to

maximum inverter current.

The current limit may be reduced if the motor thermal model calculation indicates that overheating will

occur.

Level: