Minimum Speed Mode; Product-Related Default Values - Parker 650G Product Manual

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%.

Product-Related Default Values

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 about these and additional parameters accessible using DSE (or
other suitable programming tool), refer to the 650G 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
STOP and DOWN keys on the keypad. Release the keys to display the
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.
650G AC Drive
Programming Your Application
.
You are now in a menu containing some sensitive and important parameters.
e
0.02 parameter. Press the M key. The values for this parameter
www.comoso.com
output
100
Min
-100
0
output
100
Min
0 100%
Caution
6-16
input
100%
max =
300.00% – (2 x min)
input
200%
e
0.01 parameter.