Modes Of Operation; Set-Point Controller - Seco DS9000 Installation & Operation Manual

LO Minimum Speed setting – Adjustable by UP and DOWN Arrow keys. Readout scaling is the
same as PS1 – PS4. In set point mode, the maximum value that can be set is 1/3 of scale factor
SCF0. In the follower mode, the maximum "LO" value is (HI - .001). Minimum value that can
be set in either mode is 0.
HI Maximum speed setting. Adjustable by UP and DOWN Arrow keys. Readout scaling is the
same as PS1 – PS4. Value is limited by SCF0 (max) and 2/3 of SCF0 (min) in set point mode.
In follower mode, the maximum value is 9.999 and the minimum value is (LO + .001).
ACE1 Time in seconds to accelerated from zero to full speed. Adjustable by UP and DOWN Arrow
keys between 0.1 and 999.9 seconds. This parameter is not displayed in follower mode.
dEC1 Time in seconds to decelerate from maximum speed to zero speed. Adjustable by UP and
DOWN Arrow keys between 0.1 and 999.9 seconds. This parameter is not displayed in
follower mode.
FEd0 Feedback resolution for the controlled motor is equal to the maximum feedback frequency
divided by 30. The maximum value is 600 and the minimum is 30.
FEd1 The same as FEd0 except for the master reference input used when in follower mode. Not
displayed in setpoint mode.
SCF0 Scale factor for readout of controlled motor. Enter the value you wish to have displayed at
maximum speed. If RPM, and maximum speed is 1800 RPM, enter 1800.
SCF1 Same as SCF0 except for the reference signal input. Enter value to displayed at maximum
reference input frequency. Not displayed in setpoint mode.
SCd0 Decimal point location for SCF0
SCd1 Decimal point location for SCF1. Not displayed in setpoint mode.
The tune-up parameters are used for the few applications where modifications to the system gain
parameters are required. The default values will be acceptable for most applications. For all three gain
parameters, to increase the gain decrease the value entered (50 – maximum gain for PE and IE, 5 for
POSE). See Section 5.0 for detailed instructions.
PE Proportional gain adjustment. The default value is 200. The range of adjustment is 50 to 300.
IE Integral gain adjustment. The default value is 300. The range of adjustment is 50 to 2000.
POSE Position error gain adjustment. This parameter is only applicable in the follower mode. The
default value is 10. The range of adjustment is 5 to 300.
1.9

MODES OF OPERATION

1.9.1

SET-POINT CONTROLLER

In the Set-Point Controller Mode the speed set-point for the controlled motor is entered by the
operator on the key pad and displayed on the 4-digit display. The DS9000 compares this set-point
with the signal from the feedback pulse generator and provides a control signal to the drive to reduce
the error to zero.
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