34
✭
Indicates default parameter. Depending upon the application, the drive may be delivered with other parameters selected.
017
Operating State at Power Up
(POWER UP ACTION)
Value:
★
Auto restart (AUTO RESTART)
[0]
OFF/STOP (OFF/STOP)
[1]
Function:
Selects auto or manual restart when power is reapplied after an outage
occurs to a running drive.
Description of choice:
Auto restart is selected if the drive is to resume operation after a power
outage.
OFF/STOP is selected if the drive is to remain stopped after a power
outage. To restart, press the Hand/Start or Auto/Start key at the
keypad.
CAUTION
!
If HAND/START or AUTO/START are disabled
by parameters 012 and 014, motor will not be
able to restart if
OFF/STOP is selected.
Load and Motor
Parameters 100 through 117
This parameter group controls output power and other output
characteristics of the drive.
For correct operation, motor nameplate data must be entered into
parameters 102 through 106 either through the Quick Menu or the
Extended Menu. In addition, automatic motor adaptation, DC braking
and motor thermal protection can be set by this parameter group.
100
Configuration
(CONFIG. MODE)
Value:
★
Open loop (OPEN LOOP)
[0]
Closed loop (CLOSED LOOP)
[1]
Function:
This parameter is used for selecting closed loop or open loop
operation.
Description of choice:
If Open loop is selected, speed control is changed directly by the
speed reference signal. Any feedback signal applied to the drive will
have no effect on the drive’s speed.
If Closed loop is selected, the internal process regulator is available to
accept feedback signal(s) to provide the desired speed regulation.
NOTE
If Open Loop is selected, parameters associ-
ated with setting up PID controller are not
accessible. Therefore, it is important to prop-
erly set parameter 100,
Configuration, first when
closed loop operation is required.
Characteristics
101
Torque Characteristics
( VT CHARACT)
Value:
★
Automatic Energy Optimization
(AEO FUNCTION)
[0]
Parallel motors (MULTIPLE MOTORS)
[1]
Function:
This parameter configures the drive for single or multiple motor
operation.
Description of choice:
Select Automatic Energy Optimization (AEO) for all single motor
applications. When AEO has been selected, only one motor may be
connected to the drive at a time.
The AEO function will automatically and continuously monitor the load
and adjust the output voltage to maximize motor and drive efficiency
and performance. After the motor reaches the set speed, the AEO
function reduces the output voltage to the motor, if the load will allow.
When the load is light, the voltage is reduced, as shown in the graph
below. This lower voltage reduces motor heating and motor noise, and
increases efficiency.
Select Parallel motors when more than one motor is connected in
parallel to the output. In this case, it is necessary to set a start voltage in
parameter 108, Start Voltage of Parallel Motors.
