Minimum Speed Mode; Product-Related Default Values; Frequency Dependent Parameters - Parker 650 Serie Manual De Producto

6-11
Programming Your Application

Product-Related Default Values

Frequency Dependent Defaults
Display Parameter
BASE FREQUENCY
MAX SPEED

Minimum Speed Mode

There are two operating modes for the minimum speed feature.
Proportional with Minimum
In this mode the speed setpoint is clamped to be
between the minimum speed value (P3) and 100%.
This is the default for the minimum speed feature.
Linear
In this mode the speed setpoint is
first clamped to be in the range 0 to
100%. It is then rescaled so that the
output goes linearly between the
minimum speed value (P3) and
100% for an input setpoint that goes
between 0% and 100%. If the
minimum speed value (P3) is
negative the speed setpoint will be
internally set to 0%.
All examples given in this book are based on a UK, 230V, 50Hz, 0.25kW drive. This manual
provides information about each parameter accessible using the keypad, or MMI (Man Machine
Interface). For more information, refer to the 650 Software Product Manual on our web site:
www.parker.com/ssd

* Frequency Dependent Parameters

These parameter values (marked with "*" in the Application diagrams) are dependent upon the
drive's "default frequency".
Changing the "default frequency" parameter from 50Hz to 60Hz, and vice versa, causes the
values of the parameters in the table below to be changed.
To change the "default frequency", power-down the drive. Power-up the drive holding down the
"E" and DOWN keys on the keypad. Release the keys to display the
You are now in a menu containing some sensitive and important parameters.
Press the UP key to display the
are: 0 = 50Hz default, 1 = 60Hz default. Select the setting using the UP/DOWN keys and then
press the E key. Power-down the drive and power-up again holding down the UP and DOWN
keys. This resets ALL parameters to their correct default values, including Motor Parameters.
Function Block
MOTOR DATA
REFERENCE
100
Min
-100
output
100
Min
0
Caution
e
0.02 parameter. Press the M key. The values for this parameter
Tag 50Hz Operation
1159 50Hz
57 50Hz
output
0 100%
max =
300.00% – (2 x min)
input
100% 200%
e
0.01 parameter.
60Hz Operation
60Hz
60Hz
650 Series AC Drive
input