Справочник Пользователя для Siemens micromaster 411

 

MICROMASTER 411 & COMBIMASTER 411    Operating Instructions  

88 

6SE6400-5CA00-0BP0  

 

Load duty cycle must lie within specified limits 

 

Motor power (P0307) must match inverter power (r0206) 

Possible Causes 

 

Motor overloaded 

 

Load duty cycle too high 

Diagnose & Remedy  

Independently of the kind of temperature determination check the following: 

 

Load duty cycle must be correct 

 

Motor nominal overtemperatures (P0626-P0628) must be correct 

 

Motor temperature warning level (P0604) must match 

If P0601 = 0 or 1, check the following: 

 

Check if name plate data are correct (if not perform quick commissioning) 

 

Accurate equivalent circuit data can be found by performing motor identification (P1910=1) 

 

Check if motor weight (P0344) is reasonable. Change if necessary 

 

Via P0626, P0627, P0628 the standard overtemperatures can be changed, if the motor is not a 
Siemens standard motor 

If P0601 = 2, check the following: 

 

Check if temperature shown in r0035 is reasonable 

 

Check if the sensor is a KTY84 (other sensors are not supported) 

Possible Causes 

The cyclic access to the UCE Values and powerstack temperatures via the I2C bus (MM440 Frame size 
FX & GX) is disturbed 

Possible Causes 

One motor phase is disconnected 

Diagnose & Remedy  

 

Increase duty cycle P1237 

 

Increase ramp down time P1121 

Possible Causes 

Motor data identification (P1910) selected or running 

Possible Causes 

Speed Control Optimisation (P1960) is selected or running 

Possible Causes 

Signal from Encoder lost and Inverter has switched to sensorless vector control 

Diagnose & Remedy  

Stop inverter and then 

 

Check encoder fitted. If encoder not fitted, set P0400 = 0 and select SLVC mode (P1300 = 20 or 22) 

 

If encoder fitted, check correct encoder selected (check encoder set-up in P0400). 

 

Check connections between encoder and inverter 

 

Check encoder not faulty (select P1300 = 0, run at fixed speed, check encoder feedback signal in 
r0061) 

 

Increase encoder loss threshold in P0492