Siemens 440 User Manual

Page of 78
6  Commissioning 
Issue 10/06 
 
MICROMASTER 440 
44 
Operating Instructions (Compact) 
6.4.12 Reference/limit 
frequencies 
 
Min. frequency
 (entered in Hz) 
Sets minimum motor frequency [Hz] at which motor will run irrespective of frequency 
setpoint. If the setpoint falls below the value of p1080, then the output frequency is set to 
p1080 taking into account the sign. 
 
Max. frequency
 (entered in Hz) 
Sets maximum motor frequency [Hz] at which motor will run irrespective of the frequency 
setpoint. If the setpoint exceeds the value p1082, then the output frequency is limited. The 
value set here is valid for both clockwise and anticlockwise rotation. 
 
Reference frequency
 (entered in Hz) 
The reference frequency in Hertz corresponds to a value of 100 %.  
This setting should be changed if a maximum frequency of higher than 50 Hz is required. 
It is automatically changed to 60 Hz if the standard 60 Hz frequency was selected using 
p0100. 
NOTE
 
This reference frequency effects the setpoint frequency as both the frequency setpoints via 
USS as well as via PROFIBUS (FB100) (4000H hex    100 %    p2000) refer to this value.
 
Reference voltage 
(entered in V) 
The reference voltage in Volt (output voltage) corresponds to a value of 100 %.  
NOTE 
This setting should only be changed if it is necessary to output the voltage with a different 
scaling. 
 
Reference current 
(entered in A) 
The reference current in Amps (output current) corresponds to a value of 100 %. Factory 
setting = 200 % of the rated motor current (P0305).  
NOTE 
This setting should only be changed if it is necessary to output the current with a different 
scaling. 
 
Reference torque 
(entered in Nm) 
The reference torque in Nm corresponds to a value of 100 %. Factory setting = 200 % of 
the rated motor torque at a constant motor torque determined from the appropriate motor 
data. 
NOTE 
This setting should only be changed if it is necessary to output the torque with a different 
scaling. 
 
1000 V
P2001 = ... 
0.10 A
P2002 = ... 
0.12 Mn
P2003 = ... 
P2000 = ... 
P1082 = ... 
P1080 = ... 
0.00 Hz
50.00 Hz
50.00 Hz