Siemens MICROMASTER Vector Operating Instructions Manual page 43

6. SYSTEM PARAMETERS
Parameter Function
P004 ·
Smoothing Time (seconds)
P005 ·
Digital frequency setpoint (Hz)
P006
Frequency setpoint source selection
P007
Keypad control
P009 ·
Parameter protection setting
P010 ·
Display scaling
© Siemens plc 1999
Range Description / Notes
[Default]
0 - 40.0 Used to smooth the acceleration/deceleration of the motor (useful in
[0.0] applications where it is important to avoid 'jerking', e.g. conveyor systems,
textiles, etc.).
Smoothing is only effective if the Ramp-up and/or down time exceeds 0.3 s.
Frequency
f
max
(P013)
0 Hz
Note: The smoothing curve for deceleration is also affected by the Ramp-up
gradient (P002). Therefore, the Ramp-down time is also affected by changes
to P002.
0 - 650.00 Sets the frequency that the inverter will run at when operated in digital mode.
[5.00] Only effective if P006 = 0 or 3.
0 - 3 Selects the mode of control of the frequency setpoint for the inverter.
[0]
0 = Digital motorised potentiometer. The inverter runs at the frequency set in
P005 and can be controlled with the D and Ñ pushbuttons (motorised
potentiometer). Alternatively, if P007 is set to zero, the frequency may be
increased or decreased by setting any two of the digital inputs (P051 to
P055 or P356) to values of 11 and 12.
1 = Analogue. Control via analogue input signal.
2 = Fixed frequency. Fixed frequency is only selected if the value of at
least one of the digital inputs (P051 to P055 or P356) = 6 17 or
18.
3 = Digital setpoint addition. Requested frequency = digital frequency
(P005) + fixed frequencies (P041 to P044, P046 to P049) as
selected.
Notes: (1) If P006 = 1 and the inverter is set up for operation via the serial link,
the analogue inputs remain active.
(2) Motorised potentiometer setpoints via digital inputs are stored
upon power-down when P011 = 1.
0 - 1 0 = RUN, JOG and REVERSE are disabled. Control is via digital inputs
(see parameters P051 - P055 and P356). D and Ñ may still be used to
[1]
control frequency provided that P124 = 1 and a digital input has not
been selected to perform this function.
1 = Front panel buttons can be selectively enabled or disabled depending
on the setting of parameters P121 - P124.
Note: The digital inputs for RUN, JOG and increase/decreasefrequency
are disabled.
0 - 3 Determines which parameters can be adjusted:
[0]
0 = Only parameters from P001 to P009 can be read/set.
1 = Parameters from P001 to P009 can be set and all other
parameters can only be read.
2 = All parameters can be read/set but P009 automatically resets to 0
when power is removed.
3 = All parameters can be read/set.
0 - 500.0 Scale factor for display when P001 = 0, 1, 4, 5, 7 or 9.
[1.00]
Four digit resolution.
43
P002 = 10 s
P004 P004
= 5 s = 5 s
Total acceleration time
= 15 s
English
Time
G85139-H1751-U529-D1
4/8/99