Woodward DSLC, Installation And Operation Manual, Page: 40 / 114

DSLC Digital Synchronizer and Load Control Manual 02007
34 Woodward
16. Voltage Range Alarm enables or disables the voltage regulator bias output
limit alarm. This alarm activates if the limit of the voltage bias output is
exceeded (above 100% or below
 100% voltage bias output).
17.
Voltage Ramp Time specifies the time required to ramp the voltage bias
output over its full range when a MOP is used for voltage adjustment. It also
adjusts the rate of change in voltage bias output by the synchronizer voltage
matching function.
Menu 5—Configuration
1.
Configuration Key is set to 49 to allow changing configuration set points.
All discrete input switches must be open, and the generator voltage must be
below 40 V L-N, to adjust configuration of set points.
2.
PT Winding Ratio is set to correspond to the potential transformer winding
ratio. NOTE: Bus and generator potential transformers must be the same
ratio.
3.
CT Rating is set to correspond to the current transformer rating.
4.
PT Voltage Input specifies whether the 120 or 240 PT voltage inputs are
used.
5.
Voltage Display specifies whether voltages are displayed on the Hand Held
Programmer as volts line-to-neutral, volts line-to-line, kilovolts line-to-
neutral, or kilovolts line-to-line.
6.
System Frequency is set to nominal system operating frequency (50/60
Hz).
7.
Process Control Action specifies if the process variable is direct or indirect
acting. If the process variable increases when generator load increases, the
action is direct. If the process variable decreases when generator load
increases, the action is indirect.
8.
Network Address is a unique address for each DSLC control in a system.
You assign a number from 1 to 16 to the Network Address (each DSLC
control in a system must have a unique number). After setting the network
address, press the “SAVE” key to put the new address into effect.
NOTE
In systems where the DSLC control is installed with other devices (see
Chapter 8) using a network management tool, the management tool
automatically assigns each DSLC control a unique address. In this case, any
network address change you make will not take effect when the “SAVE” key
is pressed. This is indicated by the Network Address set point reverting to
its previous value.
9.
Network Service Pin causes a unique identification code to be transmitted
on the network. This is used for network management in systems containing
other network devices than DSLC controls.