Setting Your Ratio; How To Change Parameters; Security, Inhibiting Parameter Changes; Parameter Changes With Ds9000 Off - Seco DS9000 Installation & Operation Manual

Ac drive digital speed controller
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To set your ratio, program the ratio value into PS1, PS2, PS3 or PS4 and select the desired parameter
by connecting the desired combination of TB1-4 and 5 to circuit common (TB1-9 or 12). Refer to
Section 1.8 for the procedures to select the desired ratio parameter. With the start input preset,
DS9000 operational, pressing the UP or DOWN key in HI mode changes the value of PS1, PS2, PS3 or
PS4, by units of 10 and by units of 1 in LO mode.
4.5

HOW TO CHANGE PARAMETERS

The DS9000 is made flexible and application friendly by a series of seventeen parameters which may
be checked or changed from the keypad. Depending on the security mode and whether the DS9000 is
running or stopped, certain parameters may or may not be accessed or changed. When the security
mode is on, only the four Speed or Ratio Parameters, PS1, PS2, PS3, and PS4 may be changed.
4.5.1

SECURITY, INHIBITING PARAMETER CHANGES

By connecting TB1-6 to circuit common (TB1-9 or 12), the DS9000 security mode is activated. In this
mode, the only parameters that the operator can change from the keypad are the speed setpoint (or
ratio presets) PS1, PS2, PS3, and PS4. With TB1-6 open (no connection) the value of active preset
may be changed simply by pressing the UP or DOWN keys. Its value may be displayed by pressing the
"TACH/REF" key until the "REF" LED is illuminated. By varying the connections PS1, PS2, PS3 or
PS4 and display or change these parameters in similar fashion. All other parameters are locked out
when the security mode is active.
4.5.2
PARAMETER CHANGES WITH DS9000 OFF (STOPPED)
When the DS9000 is in STOP mode, that is, when START signal is off, and security mode is not
selected, all parameters may be checked and changed by the operator from the keypad. To check a
parameter, enter PROG mode by pressing the "PROG" key. The "TACH" LED will begin to blink,
indicating that the DS9000 is in PROG mode. While in this mode, the DS9000 should not be started
as the motor will not run until you move out of PROG mode. Pressing the UP or DOWN keys will
scroll through the seventeen different parameters by code name. When the parameter to be changed is
reached, press "VALUE/CODE" key. The display will now indicate the VALUE of the selected
parameter. To change it, press either the UP or DOWN keys. When done, press "PROG" to return to
normal display. The "TACH" LED will stop blinking.
4.5.3

PARAMETER CHANGES WITH DS9000 RUNNING

When the DS9000 is running, i.e., the START signal is on, and security mode is off, only the eight
basic operator adjustment parameters may be accessed. These are checked and changed in the same
fashion as detailed in section 4.5.2.
As stated in Section 2.7.3, improper system operation may occur if you move into PROG mode (Tach
LED will flash) while operating your system. The contact inputs to TB1 will not be recognized until
you move out of PROG mode. For safe operation, follow 3.5.2 to interrogate or change parameters.
4.6
CHANGING PARAMETER DATA TABLES (A & B)
A unique feature of the DS9000 is its ability to store and use two complete sets of user adjustments.
These are called Parameter Data Tables A and B. This feature can be useful when, for example, two
different processes must be run, each having its own set of parameters.
Parameter Data Table A is selected when TB1-3 is Open (no connection) and data table B when TB1-3
is connected to circuit common (TB1-9 or 12). This switch may only be changed while the START
input is OFF and not in PROG mode.
Parameters that can be adjusted are shown in one of the Parameter sets below:
OPERATION
36
PRESET RATIO 1
(PS1)

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Ds9000a

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