SODECA VSD1/A-RFM-0.5 Manual De Instalación Y Operación página 51

Par. Description
P-40 Index 1 : Display Scaling Factor
Index 2 : Display Scaling Source
Allows the user to program the VSD to display an alternative output unit scaled from either output frequency (Hz), Motor Speed
(RPM) or the signal level of PI feedback when operating in PI Mode.
Index 1 : Used to set the scaling multiplier. The chosen source value is multiplied by this factor.
Index 2 : Defines the scaling source as follows :-
0 : Motor Speed. Scaling is applied to the output frequency if P-10 = 0, or motor RPM if P-10 > 0.
1 : Motor Current. Scaling is applied to the motor current value (Amps)
2 : Analog Input 2 Signal Level. Scaling is applied to analog input 2 signal level, internally represented as 0 – 100.0%
3 : PI Feedback. Scaling is applied to the PI feedback selected by P-46, internally represented as 0 – 100.0%
P-41 PI Controller Proportional Gain
PI Controller Proportional Gain. Higher values provide a greater change in the drive output frequency in response to small changes in
the feedback signal. Too high a value can cause instability
P-42 PI Controller Integral Time
PI Controller Integral Time. Larger values provide a more damped response for systems where the overall process responds slowly
P-43 PI Controller Operating Mode
0 : Direct Operation. Use this mode if when the feedback signal drops, the motor speed should increase.
1 : Inverse Operation. Use this mode if when the feedback signal drops, the motor speed should decrease.
P-44 PI Reference (Setpoint) Source Select
Selects the source for the PID Reference / Setpoint
0 : Digital Preset Setpoint. P-45 is used
1 : Analog Input 1 Setpoint. Analog input 1 signal level, readable in P00-01 is used for the setpoint.
P-45 PI Digital Setpoint
When P-44 = 0, this parameter sets the preset digital reference (setpoint) used for the PI Controller as a % of the feedback signal
range.
P-46 PI Feedback Source Select
Selects the source of the feedback signal to be used by the PI controller.
0 : Analog Input 2 (Terminal 4) Signal level readable in P00-02.
1 : Analog Input 1 (Terminal 6) Signal level readable in P00-01
2 : Motor Current. Scaled as % of P-08.
3 : DC Bus Voltage Scaled 0 – 1000 Volts = 0 – 100%
4 : Analog 1 – Analog 2. The value of Analog Input 2 is subtracted from Analog 1 to give a differential signal. The value is limited to 0.
5 : Largest (Analog 1, Analog 2). The largest of the two analog input values is always used for PI feedback.
P-47 Analog Input 2 Signal Format
 = 0 to 10 Volt Signal
 = 0 to 20mA Signal
 = 4 to 20mA Signal, the VSD will trip and show the fault code  if the signal level falls below 3mA
 = 4 to 20mA Signal, the VSD will ramp to stop if the signal level falls below 3mA
 = 20 to 4mA Signal, the VSD will trip and show the fault code  if the signal level falls below 3mA
 = 20 to 4mA Signal, the VSD will ramp to stop if the signal level falls below 3mA
 = Use for motor thermistor measurement, valid with any setting of P-15 that has Input 3 as E-Trip. Trip level : 3kΩ, reset 1kΩ
P-48 Standby Mode Timer
When standby mode is enabled by setting P-48 > 0.0, the drive will enter standby following a period of operating at minimum speed
(P-02) for the time set in P-48. When in Standby Mode, the drive display shows , and the output to the motor is disabled.
P-49 PI Control Wake Up Error Level
When the drive is operating in PI Control Mode (P-12 = 5 or 6), and Standby Mode is enabled (P-48 > 0.0), P-49 can be used to define
the PI Error Level (E.g. difference between the setpoint and feedback) required before the drive restarts after entering Standby
Mode. This allows the drive to ignore small feedback errors and remain in Standby mode until the feedback drops sufficiently.
P-50 User Output Relay Hysteresis
Sets the hysteresis level for P-19 to prevent the output relay chattering when close to the threshold.
Minimum Maximum
0.000 16.000
0 3
0.0 30.0
0.0 30.0
0 1
0 1
0.0 100.0
0 5
- -
0.0 25.0
0.0 100.0
0.0 100.0
20
VSD*/A VSD*/B
Default Default
0.000 0.000
0 0
1.0 1.0
1.0 1.0
0 0
0 0
0.0 0.0
0 0
- -
0.0 0.0
5.0 5.0
0.0 0.0
Units
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U0-10
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