Manual 37259C
SPM-D11 - Synchronizing Unit
© Woodward
Page 47/79
Voltage Controller
The SPM-D11/LSR is provided with a three-step controller for voltages and does not contain the following
screen. Moreover, only the screens for setting the three-step controller exist. Several controller output signals can
be selected using the following screen with the SPM-D11/LSRX. Depending on the selected controller type, the
following screens belonging to it appear.
V contr. type
xxxxxxx
only SPM-D11/LSRX
Voltage controller type
THREE-STEP/ANALOG
THREE-STEP:
The voltage controller operates as three-step controller and issues
raise (V+) and lower (V-) pulses via the respective relays. Only one
of the two controllers (the frequency or the voltage controller) can be
used for relay output at a time.
ANALOG ....
The voltage controller operates as continuous controller with an ana-
log output signal (mA or V).
Note:
The controller setting and the following screens are different, depending on
the controller type selected here.
Three-Position Controller (SPM-D11/LSR and SPM-D11/LSXR, Setting 'THREE-STEP')
Volt. controller
ON
only SPM-D11/LSR and
SPM-D11/LSXR 'THREE-STEP'
Voltage controller
ON/OFF
ON
................ Generator voltage control is carried out. The generator voltage is
controlled in various manners depending on the task (no load / iso-
lated operation / synchronization). The following screens of this
function are displayed.
OFF
.............. Control is not carried out, and the following screens of this function
are not displayed.
Volt. controller
Isol. oper. ON
only SPM-D11/LSR and
SPM-D11/LSXR 'THREE-STEP'
Voltage controller isolated mode
ON/OFF
The setting of this screen has no influence on the load share control.
ON
................ In isolated operation the voltage controller is enabled.
OFF
.............. In isolated operation the voltage controller is disabled.
Volt. controller
Ramp = 00V/s
only SPM-D11/LSR and
SPM-D11/LSXR 'THREE-STEP'
Voltage controller set point ramp
1 to 99 V/s
A change in set point is supplied to the controller via a ramp. The slope of the ramp
is used to alter the rate at which the controller follows the set point value. The more
rapidly the set point should change, the greater should be the value set here.