Beijer Electronics BFI-P2 V1.21 - Manual (Page 39)

User Guide Revision 1.121
www.beijerelectronics.com
39
Par Parameter Name Minimum Maximum Default Units
P2‐21 Display Scaling Factor ‐30.000 30.000 0.000 ‐
P2‐22 Display Scaling Source 0 2 0 ‐
P2‐21 & P2‐22 allow the user to program the Drive to display an alternative output unit scaled from an existing parameter, e.g. to
display conveyer 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
3: P0‐80 Value
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. Refer to section 1Error! Reference source not found..4 for further
information regarding operation at higher switching frequency.
P2‐25 2nd Deceleration Ramp Time 0.00 240.0 0.00 Seconds
This parameter allows an alternative deceleration ramp down time to be programmed into the Drive, which can be selected 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 which are not turning.
P2‐27 Standby Mode Timer 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 Drive
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 4-20 = 4 to 20mA Signal, the Drive will trip and show the fault code 4-20F if the signal level falls below 3mA
r 4-20 = 4 to 20mA Signal, the Drive will ramp to stop if the signal level falls below 3mA
t 20-4 = 20 to 4mA Signal, the Drive will trip and show the fault code 4-20F if the signal level falls below 3mA
r 20-4 = 20 to 4mA Signal, the Drive 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 %
Sets an offset, as a percentage of the full scale range of the input, which is applied to the analog input signal