Basic Mode Parameters - Siemens MICROMASTER Eco Reference Manual

BASIC MODE PARAMETERS

Parameter Function
Ramp-up time
This is the time taken for the motor to accelerate from standstill to the maximum frequency. The
maximum frequency is set by parameter P013. Setting the ramp-up time too short can cause the
inverter to trip (Fault code F002 = overcurrent).
Ramp-down time
This is the time taken for the motor to decelerate from maximum frequency to standstill. The
maximum frequency is set by parameter P013. Setting the ramp-down time too short can cause the
inverter to trip (Fault code F001 = DC link overvoltage). This is also the period for which injection
braking is applied, if selected (refer to parameter P073 in Expert mode).
Frequency setpoint source
selection
The value of this parameter 0, 1, 2 or 3) selects the mode of control of the inverter's frequency
setpoint.
0 = digital motorised potentiometer. the inverter runs at the frequency set in P005 (refer to Expert
mode) and can be controlled with the [up] and [down] keys. If P007 (see below) is set to 0, the
frequency can be increased or decreased by setting any two of the digital inputs (P051 to P055
or P356 - refer to Expert mode) to the values of 11 and 12.
1 = Analogue. the inverter output frequency is controlled by analogue input signals (0-10V, 0/4-
20mA or potentiometer).
2 = Fixed frequency. Fixed frequency is only selected by setting the value of at least one of the
digital inputs (P051 to P055 or P536 - refer to Expert mode) to the value of 6 or 18.
13-4
Range
0 - 150.0
F r e q u e n c y
B
m a x
0 H z
R a m p u p
t im e
( 0 - 1 5 0 s )
0 - 150.0
F r e q u e n c y
B
m a x
0 H z
R a m p d o w n
( 0 - 1 5 0 s )
0 - 2
ECO REFERENCE MANUAL
Default
20
T im e
20
T im e
t im e
0
Units
seconds
seconds
-