Setting Descriptions - Eaton Cutler-Hammer FP-5000 Instructions Manual

Page 5-32

5.5 Setting Descriptions

This section discusses the settings in a little more detail than the
settings table.
5.5.1 System Configuration Setting Descriptions
(System Config)
The System Config settings contain all of the settings to configure
the power system.
Frequency: Nominal system operating frequency.
Phase Seq: ABC or ACB system phase sequence or rotation.
Ct Connect: The "3-wire" setting should be used for
three-phase, three-wire, medium voltage
power systems. The "4Ct In" setting should be
used on a three-phase, 4-wire system where
a 4 Ct is connected in the neutral conductor
th
on. The "4Ct Ig" should be used on a three-phase,
4-wire system when a zero-sequence ground
Ct is used. See Section 8 for more information.
PH Ct Ratio: The primary connected current rating of the
phase Cts. For example, set to 800 for phase
Cts of 800:5.
IX Ct Ratio: The primary connected current rating for the
fourth current input(usually for neutral or
ground). If the ground measurement is taken
from a residual phase connection then this
setting will be the same as the Phase Ct Ratio
setting above. If a zero sequence or ground Ct
is used then the primary rating for that Ct will
be used.
VT Connect: Voltage transformer connection – wye or
"open" delta.
Main VTR: Main voltage transformer ratio to one.
Example: 13.2 kV system, 120V VT – set Main
VTR to 110 = (13200/120)
Aux VTR: Auxiliary voltage transformer ratio.
See example above.
Prim Units: Selection of Primary units for metering voltage
and current displayed values.
If setting is "Yes", then all voltages and
currents (including sequence voltages and
currents) will be displayed in primary values,
which are system values.
If setting is "No", then all voltages and currents
(including sequence voltages and currents)
will be displayed in secondary values, which
are the actual values measured at
the FP-5000 inputs.
Power and energy readings are always in
primary values.
I/O Config: The user may select either default input/output
configuration or customized input/output
configuration. The I/O refers to the contact
inputs and output relays. Choosing customized
I/O allows the user to freely program the
contact inputs and relay outputs. See Table
5.16 Contact Input CFG and Output CFG
settings and the following descriptions for
more information. The unit is shipped from the
factory with "I/O Config" set to default.
The I/O cannot be changed from the default
setting unless this setting has been set to
Custom I/O. A Default I/O setting will not give
the user access to the configured I/O settings in
the Set Mode. To view I/O configuration, the
user will need to exit the Set Mode and enter
the View Setting mode and scroll to the
appropriate section. If the relay I/O has been
customized, then selecting the "Default I/O" will
change all the Custom I/O settings back to the
factory default settings.
Changing this setting will immediately ask you
to confirm and save the settings and will exit
you out of the setting mode. You will need to
enter back into the Set Mode to continue your
programming session. Please note that all
settings made prior to this point will be saved
upon the confirmation to save the settings. This
update is necessary for the relay to know if I/O
configuration is permitted and to give access to
these settings.
Prog Logic: The user may select either the default
programmable logic or customized programmable
logic settings. Choosing customized program-
mable logic allows the user to freely program
all of the logic gates. See "Programmable
Logic" Table 5.7 settings and in the descriptions
below for more information. The unit is shipped
from the factory with "Prog Logic" set to default.
The programmable logic cannot be changed
from the default settings unless this setting has
been set to Custom Programmable Logic. A
Default programmable logic setting will not give
the user access to the Programmable Logic
settings in the Set Mode. To view programmable
logic configuration, the user will need to exit
the Set Mode and enter the View Setting
mode and scroll to the appropriate section. If
the relay programmable logic has been
customized; then selecting the "Default
Programmable Logic" will change all the
Custom Programmable Logic settings back
to the factory default settings.
Changing this setting will immediately ask you
to confirm and save the settings and will exit
you out of the setting mode. Please note that all
settings made prior to this point will be saved
upon the confirmation to save the settings. This
update is necessary for the relay to know if
Programmable Logic configuration is permitted
and to give access to these settings.
Remote Set: This setting Enables or Disables the remote
capability of downloading setpoints via the rear
communication port using Cutler-Hammer's
PowerNet software. When enabled, the user
can program and download settings to the
relay through either the front RS-232 port or
the rear communications port. If disabled, the
settings can only be programmed into the unit
via the front panel pushbuttons or the front
RS-232 port.
IL17569
Effective June, 2001