Switching frequency of the IGBT inverter module.
Selects between coast to stop or ramp to stop.
Ramp profile is controlled by parameter
SHUTDOWN RAMP. NO = ramp to stop, YES =
coast to stop
GND FAULT
DETECT
FAULT
SENSITIVITY
Detects a fault between any output line and
earth. Sensitivity to fault detection is adjustable to
avoid nuisance trips. Parameter is disabled by
default. Lower value equals lower sensitivity to
fault detection.
PWM OVER MODULATION is added to increase
the output voltage.
If input voltage is below nominal voltage, output
voltage could be low. Monitor output voltage, and
use this parameter to boost output voltage if
necessary.
Programming Tip
Constant pressure parameters are only displayed when System Configuration has been set
for constant pressure. The parameter SYSTEM CONFIG is in the Interface Parameters
sub-menu. See Table 14, for details.
Table 13 – Constant Pressure Parameters
In seconds. Used to prevent short cycling in CP
systems. If the motor was off during the last cycle for
a period greater than TOFF, the minimum on time of
the motor is T1ON. If the motor was off for a period
less than TOFF, the minimum on time of the motor is
T2ON. Default values give a minimum cycle time of
about 1 minute.
In seconds. See T OFF above. T1ON should be set
to be less than T2ON.
In seconds. See T OFF above. T1ON should be set
to be less than T2ON.
As Hz. This parameter value is added to the
frequency set by the parameter MINIMUM FREQ
(Table 5-1). The combined value is the frequency at
which drive will enter sleep mode when pressure is
controlled at the set point.
In Hz. Sets the maximum frequency applied to the
motor during the pre-charge interval.
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