46
ADVANCED USER GUIDE
Commander SX
IP66/Nema 4X variable speed drive
MENU 3: FREQUENCY THRESHOLDS - ENCODER OPTION
CONTROL TECHNIQUES
3854 en - 03.2008 / b
: Frequency input reference destination
Adjustment range :0.00 to 21.51
Factory setting :0.00
Used to select the destination of the numerical reference
resulting from conversion of the pulse signal. Only "non-bit"
type parameters can be programmed. If an unsuitable
parameter is selected, 3.46 will be frozen at 0.
to : Not used
: Vmin alarm threshold
Adjustment range :0 to 500 rpm
Factory setting :90 rpm
Triggers an alarm 10.51 when the motor speed is such that:
- (5.04) < Vmin (1.07 or 21.02) + 3.51 in open loop mode,
- (3.02) < Vmin (1.07 or 21.02) + 3.51 in closed loop
mode.
: Vmax alarm threshold
Adjustment range :0 to 500 rpm
Factory setting :90 rpm
Triggers an alarm 10.52 when the motor speed is such that:
- (5.04) > Vmax (1.06 or 21.01) - 3.52 in open loop mode,
- (3.02) > Vmax (1.06 or 21.01) - 3.52 in closed loop
mode.
to : Not used
: Frequency input source
Adjustment range :0.00 to 21.51
Factory setting :0.00
Used to select the source of pulses. Only "bit" type
parameters can be programmed. If an unsuitable parameter
is selected, 3.61 will be frozen at 0.
Note: Only use inputs ADI1, ADI2, DIO1, DI2 and DI3 as the
frequency input source. The maximum input frequency
should be 5 kHz. If the input frequency is more than 5 kHz,
use an encoder feedback option, and set 3.67 to 1 (EnCd).
: Input frequency
Adjustment range :0 to 5000 Hz
Drive encoder frequency which will be converted to a
numerical reference.
Application example:
Pulses from an inductive sensor connected on a digital input
are converted to a reference which is assigned to the speed
reference.
: Maximum frequency output reference
Adjustment range :0 to 1000.0 Hz
Factory setting :20.0 Hz
Adjusts the pulse frequency which should correspond to
100% of the original numerical reference.
Note: Set 3.63 above 0.5 Hz, since the drive output is
inactive below this value.
: Frequency output reference scale
Adjustment range :0 to 32.00
Factory setting :1.00
Used for scaling the reference from the drive encoder.
: Frequency output reference
Adjustment range :0 to 100%
Indicates the value of the analog reference.
: Not used
: Frequency input select ( )
Adjustment range :0 or 1
Factory setting :0
0 (Digital in) (Freq): An analog reference is generated
from a frequency signal.
1 (Encoder) (Encd): The encoder signal is used to generate
an analog reference (e.g. speed reference).
: Minimum frequency threshold
Adjustment range :1.0 to 10.0 Hz
Factory setting :1.0 Hz
This parameter is used to define a minimum signal absence
detection time for the frequency input. Used to adapt
detection to the period of the signal.
This minimum time = 1/(3.68).
and :Not used
: Frequency output reference source
Adjustment range :0.00 to 21.51
Factory setting :0.00
Used to select the source of the numerical reference which
will be converted into pulses.
: Frequency output period
Adjustment range :0.001 to 2.000 s
Frequency output period resulting from conversion of the
numerical reference.
Application example:
A potentiometer connected to an analog input generates a
reference which is converted into pulses whose period is
proportional to the reference. The pulses are assigned to the
run command.
: Frequency output signal
Adjustment range :0 or 1
0 (Off) (OFF)
1 (On) (On)
Used to assign the drive output to a digital output if necessary,
e.g. DIO1.
Note: There is no counting above 2 seconds.
3.46
3.47 3.50
3.51
3.52
3.53 3.60
3.61
3.62
3.63
3.64
3.65
3.66
3.67
3.68
3.69 3.70
3.71
3.72
3.73
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