37
General Parameter Settings
Parameter Description Setting Comment
100
CONFIG. MODE OPEN LOOP for GLD, MP580,
AH540 control or CLOSED
LOOP for local PID controls.
In open loop mode the drive will directly follow a speed
reference signal. If this was set to CLOSED LOOP, the drive's
PID controller would determine the drive's speed based on a set
point and a feedback signal. In Closed Loop mode the
nvoOutputPcnt (most commonly used), nvoOutputHz and
nvoOutputRads do not represent output speed. Instead they
represent the feedback signal whose range is set by parameters
413 and 414.
102 MOTOR POWER As required Motor power is entered in kW.
103 MOTOR VOLTAGE As required
104
MOTOR
FREQUENCY
As required Generally 60 Hz.
105 MOTOR CURRENT As required Motor full load nameplate current.
106
MOTOR NOM.
SPEED
As required Full load nameplate rpm.
201
MIN. FREQUENCY 6.0 Hz for ventilation fans
18.0 Hz for pumps
20.0 Hz for gearbox-driven
cooling tower fans
These are the standard default settings. They can, of course, be
adjusted to meet the needs of the applications.
202
MAX.
FREQUENCY
60.0 Hz For US applications, it is seldom necessary to adjust this.
203
REFERENCE SITE LINKED TO HAND/AUTO In this way, any time you press the AUTO START key on the
drive's control panel you are also following the change to
Remote speed reference if wanting to control through LON.
204
MIN. REFERENCE 0 Hz This is generally set for either 0 Hz or the value of parameter
201, MIN. FREQUENCY. The selection depends on how the
speed reference signal is set up.
205 MAX. REFERENCE 60 Hz
Generally 60 Hz, the same as the setting of parameter 202,
MAX. FREQUENCY.
206
RAMP UP TIME 60 s for fans
10 s for pumps
The inertia of the driven system or the need for system
responsiveness may dictate modifying these values.
207
RAMP DOWN
TIME
60 s for fans
10 s for pumps
The inertia of the driven system or the need for system
responsiveness may dictate modifying these values.
208
AURORAMPING ENABLE for fans
DISABLE for pumps
This setting is useful for fan applications. It allows the drive to
protect against tripping if regenerated energy from the motor
decelerating becomes too great.
210
REF. FUNCTION EXTERNAL - LON
PRESET others
The drive has four internally programmable preset speeds. With
other settings of this parameter, these preset speeds may add or
subtract from the LON speed reference command. This setting
ensures that the drive will either use the external speed
reference (like LON) OR the internal preset speed, but not a
combination of both.
211
PRESET REF. 1 0 % With the setting described above for parameter 210, it really
shouldn't be necessary to set all of these references to 0.
nviControlWord is used to select a preset if required.
212 PRESET REF. 2 0 % ‘’
213 PRESET REF. 3 0 % ‘’
214 PRESET REF. 4 0 % ‘’
