Siemens Simovert P 6SE21 Series Operating Instructions Manual page 26

English
SIMOVERT P 6SE21 Series Inverters
Parameter Description
Number
P37 Display tachometer frequency
reading
P40 Switching frequency select
P41 Parameter default values
P42 Auto reset mode
P43 Ramp smoothing (%)
28
G85139–A1615–U156–A
02.95
Display
Setting Notes
(Default)
000 – Read only.
400
000 19.2 kHz for single phase units.
9.6 kHz for three phase units
max. load current for 6SE2108–3AA21 is reduced to 10 A
max. load current for 6SE2133–3AA21 is reduced to 25 A
max. load current for 6SE2142–3AA21 is reduced to 31 A
001 19.2 kHz for single phase units.
19.2 kHz for three phase units except 6SE2133–3AA21 and
6SE2142–3AA21
max. load current for 6SE2108–3AA21 is reduced to 8 A
9.6 kHz for 6SE2133–3AA21 and 6SE2142–3AA21
max. load current for 6SE2133–3AA21 is reduced to 25 A
max. load current for 6SE2142–3AA21 is reduced to 31 A
002 19.2 kHz for single phase units.
4.8 kHz for three phase units.
Note: Use switching frequencies above the factory settings only
when accoustic noise generation is critical. If long motor
cables (> 30 m) are being used, set the switching frequency
to the minimum value.
(002)
000 Selects European default values – shown in parentheses ( ).
001 Selects North American default values – shown in square brackets [ ]
where different.
Note: Reading the value of P41 does not change parameter
settings. To reinstall factory settings, the value of P41 must
be changed (e.g. 000 to 001, P, P, 001 to 000).
(000)
000 Auto reset disabled.
001 Enables auto reset of fault indications. The unit will attempt to reset fault
conditions up to five times within one minute. If the fault condition
persists after one minute the display will show the last fault code.
002 Running restart.
When enabled, the inverter starts up at the setpoint frequency and
increases its output voltage gradually until it reaches its full operating
value. To restart automatically in this way following a line voltage
interruption, operate the RUN/STOP signal in level–triggered mode (i.e.
P05 set to 001, 003, 006 or 007) and set terminal X11.3 to a voltage >
7 V at power–up. This can be achieved by linking between X11.2
(+15 V) and X11.3.
Note: If P005 is set to '006' or '007' (PTC active), connect 7 V or
greater to X11.4.
(000)
000 Linear ramp up / ramp down.
001 – Ramp rates reduced as frequency approaches the setpoint. The
100 parameter value corresponds to the percentage of the ramp curve that
is rounded. i.e.:
Note:
Total ramp up / ramp
down times are
extended as this
parameter is
increased.
(000)
Operating Instructions
f
100%
x
100%
x = % value of P43
Siemens plc 1995
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