Siemens Simovert P 6SE21 Series User Manual

SIMOVERT P 6SE21 Series Inverters
English
Operating Instructions
Siemens plc 1995
G85139–A1615–U156–A
02.95
22

5.3.2 Parameter Descriptions
Note: Parameters marked with a ‘•’ may be adjusted during operation.
Parameter
Number
Description
Display
Setting
(Default)
Notes
P00
• Frequency, output current or fault
code
P01 • Low frequency voltage boost (%)
VOLTAGE
FREQUENCY
100%
Boost
0–30%
00.0 –
30.0
(00.0)
The inverter output voltage can be raised to improve the motor torque at
low speeds.
If the inverter trips and displays F00 when the RUN switch is operated,
the low frequency voltage boost should be adjusted upwards in 0.1%
increments until the motor starts without tripping. Note that excessive
boost can also cause tripping or motor overheating due to the motor
current being too high. (Adjustable while the motor is running.)
The boost may also be set using the automatic boost feature, set by
P19.
Note that P01 cannot be adjusted manually when automatic boost is
enabled.
P02 Ramp up time to maximum frequency
(seconds)
00.0 –
400
(10.0)
Short ramp up times will result in high motor currents being drawn
during start–up which can cause the inverter to trip (F00).
P03 Ramp down time from maximum
frequency (seconds)
00.0 –
400
(10.0)
Short ramp down times will result in voltage regeneration from the
stored mechanical energy in the motor which may cause the inverter to
trip (F00).
P04 Frequency control mode selection:
Analogue Inputs
0 – 10 V input (X11.7)
0 – 20 mA input (X11.9)
4 – 20 mA input (X11.9)
Digital Adjustment
Analogue Inputs
0 – 10 V input (X11.7)
0 – 20 mA input (X11.9)
4 – 20 mA input (X11.9)
000
001
002
003
004
005
006
007
008
009
(000)
0 V = 0 Hz, 10 V = max. frequency P08.
0 mA = 0 Hz, 20 mA = max. frequency P08.
4 mA = 0 Hz, 20 mA = max. frequency P08.
The frequency of the inverter can be adjusted upwards or downwards
using the
∧ ∨ keys. However, when the inverter is stopped and
restarted, it will always run to the frequency stored in parameter P09.
As 003 but the rate of change of the frequency is fixed (i.e. does not
increase after a few seconds). The feature may be useful in some
automated control functions.
As 003 but parameter P09 is updated (after a delay of about 3 s) to the
new adjusted value. In this case, when the inverter is stopped and
restarted, it will run to the new frequency stored in parameter P09.
As 004 but incorporates the P09 update feature of 005.
0 V = min. frequency P07, 10 V = max. frequency P08.
0 mA = min. frequency P07, 20 mA = max. frequency P08.
4 mA = min. frequency P07, 20 mA = max. frequency P08.
Note: Additional fixed frequencies are programmable using
parameter P24, which overrides this operating mode.

Siemens Simovert P 6SE21 Series Specifications

General

Brand	Siemens
Model	Simovert P 6SE21 Series
Category	Inverter
Language	English