Siemens COMBIMASTER Reference Manual page 25

Parameter
P014 • • • •
Skip frequency 1 (Hz) 0 – fmax**
P015 • • • •
Automatic restart
after mains failure
P016 • • • •
Start on the fly
P017 • • • •
Smoothing type
P018 • • • •
Automatic restart
after fault
P019 • • • •
Skip frequency
bandwidth (Hz)
P020
Flying start ramp time
(seconds)
24
Function Range
[Default]
[0.00]
0 - 1
[0]
0 - 2
[0]
1 - 2
[1]
0 - 1
[0]
0 - 10.00
[2.00]
0.50-
650.00
[25.00]
-- -- -- -- --
(SW
Version :
3.00
onwards)
0.1-650.00
[25.00]
COMBIMASTER & MICROMASTER Integrated
Description / Notes
A skip frequency can be set with this parameter to avoid the
effects of mechanical resonance. Frequencies within +/-
(value of P019) of this setting are suppressed. Stationary
operation is not possible within the suppressed frequency
range - the range is just passed through.
Setting this parameter to '1' enables the inverter to restart
automatically after a mains break or 'brownout', provided the
run/stop switch is still closed or the link is fitted,
P007 = 0 and P910 = 0, 2 or 4.
0 = Disabled.
1 = Automatic restart.
Allows the inverter to start onto a spinning motor.
Under normal circumstances the inverter runs the motor up
from 0 Hz. However, if the motor is still spinning or is being
driven by the load, it will undergo braking before running
back up to the setpoint - this can cause an overvoltage trip.
By using a flying restart, the inverter ramps up the output
voltage at the setpoint for the period defined by P020.
0 = Normal restart.
1 = Flying restart after power up, fault or OFF2
(if P018 = 1).
2 = Flying restart every time (useful in circumstances
where the motor can be driven by the load).
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
(SW Version : 3.00 onwards) -Current Limit is defined by
P845
1 = Continuous smoothing (as defined by P004).
2 = Discontinuous smoothing. This provides a fast
unsmoothed response to STOP commands and
requests to reduce frequency.
P004 must be set to a value > 0.0 for this parameter to have
any effect.
Automatic restart after fault:
0 = Disabled.
1 = The inverter will attempt to restart up to 5 times after
a fault. If the fault is not cleared after the 5th
attempt, the inverter will remain in the fault state
until reset.
There is an increasing time delay between each restart
attempt.
+/- the value of P019 centred on frequencies set by P014,
P027, P028 or P029 are suppressed.
Used in conjunction with P016 (set longer times if persistent
F002 trips occur).
Siemens plc. 1999
©
REFERENCE MANUAL
| G85139-H1731-U300-D2