Datakom D-500 MK2, User Manual

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D-500 MK2 User Manual Firmware V-6.3
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The unit is able to control motorized potentiometers through up/down output functions.
In order to use up/down functions, corresponding digital output function parameter should be set properly.
External potentiometers should be set to mid-point position at initial conditions.
If speed up/down outputs are enabled, the master unit will operate in order to adjust itself to the nominal
speed defined in program parameter
Nominal Frequency .
If speed-up or speed-down functions are assigned to digital outputs, then the unit will start to generate speed
up/down pulses in order to control the external speed potentiometer. The analog GOV control output will be
still valid and functional.
The minimum speed pulse width is set through program parameter Speed Up/Down Pulse Minimum .
The minimum delay between two successive pulses is set through program parameter Speed Up/Down
Pulse Delay and the maximum speed pulse width is set through program parameter Speed Up/Down
Pulse Maximum Duration .
Parameter Definition Description
Speed Up/Down
Pulse Minimum Minimum pulse width in speed pulse control mode.
Speed Up/Down
Pulse Maximum Duration Maximum pulse width in speed pulse control mode. If this parameter is
set to zero then no maximum pulse width is used.
Speed Up/Down
Pulse Delay Minimum pulse delay between two speed up/down control pulses.
If voltage up/down outputs are enabled, the master unit will operate in order to adjust itself to the nominal
voltage defined in program parameter
Nominal Voltage .
If voltage-up or voltage-down functions are assigned to digital outputs, then the unit will start to generate
voltage up/down pulses to control the external voltage potentiometer. The analog AVR control output will be
still valid and functional.
The minimum voltage pulse width is set through program parameter Voltage Up/Down Pulse Minimum .
The minimum delay between two successive pulses is set through program parameter Voltage Up/Down
Pulse Delay and the maximum voltage pulse width is set through program parameter Voltage Up/Down
Pulse Maximum Duration.
Parameter Definition Description
Voltage Up/Down
Pulse Minimum Minimum pulse width in voltage pulse control mode.
Voltage Up/Down
Pulse Maximum Duration Maximum pulse width in voltage pulse control mode. If this parameter is
set to zero then no maximum pulse width is used.
Voltage Up/Down
Pulse Delay Minimum pulse delay between two of voltage up/down control pulses.
These outputs will be available in firmware version 5.7
25.2. VOLTAGE UP/DOWN CONTROL
25.1. SPEED UP/DOWN CONTROL
25. SPEED & VOLTAGE UP/DOWN RELAY OUTPUTS