Operating instructions
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www.fptgroup.com
Neo
Installation & Operating Instructions
Page 32
P2-22 Display Scaling Source
0 2 0 -
P2-21 & P2-22 allow the user the program the Fenner QD:Neo to display an alternative output unit scaled from an existing
parameter, e.g. to display conveyor speed in metres per second based on the output frequency. This function is disabled if
P2-21 is set to 0. If P2-21 is set >0, the variable selected in P2-22 is multiplied by the factor entered in P2-21 and displayed
whilst the drive is running with a ‘c’ to indicate the customer scaled units.
P2-22 Options
0 : Motor Speed
1 : Motor Current
2 : Analog Input 2
P2-23 Zero Speed Holding Time
0.0 60.0 0.2 Seconds
Determines the time for which the drive output frequency is held at zero when stopping, before the drive output is disabled.
P2-24 Effective Switching Frequency
Drive Rating Dependent kHz
Effective power stage switching frequency. The range of settings available and factory default parameter setting depend on
the drive power and voltage rating. Higher frequencies reduce the audible ‘ringing’ noise from the motor, and improve the
output current waveform, at the expense of increased drive losses.
P2-25 2nd Declaration Ramp Time
0.00 30.0 0.00 Seconds
This parameter allows an alternative declaration ramp down time to be programmed into Fenner QD:Neo, which can be select-
ed by digital inputs (dependent on the setting of P1-13) or selected automatically in the case of a mains power loss if P2-38=2.
When set to 0.0, the drive will coast to stop.
P2-26 Spin Start Enable
0 1 0 -
0: Disabled.
1 : Enabled. When enabled, on start up the drive will attempt to determine if the motor is already rotating, and will begin to
control the motor from its current speed. A short delay may be observed when starting motors are not turning.
P2-27 Standby Timer Mode
0.0 250.0 0.0 Seconds
This parameter defines time period, whereby if the drive operates at minimum speed for at least the set time period, the
Fenner QD:Neo output will be disabled, and the display will show stndby. The Function is disabled if P2-27 =0.0
P2-28 Slave Speed Scaling Control
0 3 0 -
Active in Keypad mode (P1-12 = 1 or 2) and slave mode (P1-12=5) only. The keypad reference can be multiplied by a preset
scaling factor or adjusted using an analog trim or offset.
0 : Disabled. No scaling or offset is applied.
1 : Actual Speed = Digital Speed x P2-29
2 : Actual Speed = (Digital Speed x P2-29) + Analog Input 1 Reference
3 : Actual Speed = (Digital Speed x P2-29) x Analog Input 1 Reference
P2-29 Slave Speed Scaling Factor
-500.0 500.0 100.0 %
Used in conjunction with P2-28
P2-30 Analog Input 1 (Terminal 6) Format
See Below
U 0-10
-
U 0-10 = 0 to 10 Volt Signal (Uni-polar)
U 10-0 = 10 to 0 Volt Signal (Uni-polar)
-10-10 = -10 to +10 Volt Signal (Bi-polar)
A 0-20 = 0 to 20mA Signal
t -20 = 4 to 20mA Signal. the Fenner QD: Neo drive will trip and show the fault code -20F if the signal leve; falls below 3mA
r -20 = 4 to 20mA Signal, the Fenner QD:Neo will ramp to stop if the signal level falls below 3mA
t 20- = 20 to 4mA Signal, the Fenner QD: Neo will trip and show the fault code -20f if the signal level falls below 3mA
r 20- = 20 to 4mA Signal, the Fenner QD:Neo will ramp to stop if the signal level falls below 3mA
P2-31 Analog Input 1 Scaling
0.0 500.0 100.0 %
Scales the analog input by this factor, e.g. if P2-30 is set for 0-10V, and the scaling factor is set to 200.0%, a 5 volt input will
result in the drive running at maximum speed (P1-01)
P2-32 Analog Input 1 Offset
-500.0 500.0 0.0 %
Set an offset, as a percentage of the fulls cale range of the input, which is applied to the analog input signal.