MPC2000D
Issue 2 22/4/98
Page
17
Fast Scan Analogue 1,2 & 3
This setting range 0-201 determines the data that is sent to the PCX regardless of whether it asks for it. The settings
refer to the address's of the data in the software of the relay.
Fast Scan Update.
This setting range 0-30 s, in steps of 1 sec, determines the Fast Scan Update Time, i.e. the timeframe that the PCX
asks for the Fast Scan Data from the MPC2000D.
To see the data that can be assigned to the Fast Scan Analogues please refer to section 17.
9.2. System Settings
Line Voltage
This setting range 0-660V in steps of 5v, or 1-22kv in steps of 100v, with default setting of 415v, enables the
MPC2000D to display the measured voltages in exact volts. When only a single phase voltage reference is available
this setting must be set to root 3 times the system voltage in order for the under and over voltage protective functions
to operate correctly.
VT Primary Voltage
This setting, range 'Not Connected ' or 100V - 22kv in steps of 10v upto 1000v and 100v above 110v, with default
setting of 'Not Connected', allows for systems with voltages above 660V , where the voltage reference to the
MPC2000D must be via a voltage transformer and the VT primary voltage is set with this function.
VT Secondary Voltage
This setting, range 'Not Connected ' or 95V-660V in steps of 5v, with a default setting of 'Not Connected', allows for
systems with voltages above 660V , where the voltage reference to the MPC2000D must be via a voltage transformer
and the VT secondary voltage is set with this function.
Motor Full Load Current
Range 1-2500 Amps in steps of 1Amp upto 100 Amps and 5Amps above 100Amps, with a default setting of
100Amps, determines the normal running full load current of the motor and enables protective functions to be set in
terms of percentage FLC and enables the MPC2000D to display running current in terms of percentage FLC.
CT Primary
This setting, range 1-2500 Amps in steps of 1Amp upto 100 Amps and 5 Amps above, with a default setting of 100A,
determines the primary ratio for the phase current transformers. When using motors with FLC upto 5 Amps which are
direct connected (i.e. without CT's) this setting should be set to 5 Amps.
E/F Primary
This setting range 1-2500 Amps in steps of 1Amp upto 100 Amps and 5 Amp above determines the primary ratio of
the core balance earth fault CT if used. If a residual connection of phase CT's is used this setting must be the same as
for the phase CT primary setting.
Earth Fault Alarm
This setting range 1-100% Inom in steps of 1%, with a default setting of 5% specifies the level of earth fault current
before an alarm occurs.
Earth Fault Alarm Delay
This setting is used to select the time between an earth fault being registered and an alarm signal being activated.
Range 1-60 seconds in steps of 1s with a default setting of 10s.
Earth Fault Trip
This setting range 1-100% Inom in steps of 1%, with a default setting of 10% specifies the level of earth fault current
before an trip occurs.
