(µMOTOR) Technical Manual - PBSI Group Ltd

mMOTOR TECHNICAL MANUAL
Voltage.
This should be set to the line voltage of the supply. It is necessary for power calculations
and is used for the Under / Overvoltage, Undervoltage Restart and Undervoltage
Lockout protection features.
As an example if the voltage input was connected between two phases on a 415V
system this setting would be 415V. If however the voltage input was connected between
a phase and neutral then this setting should be 240V.
Voltage Ref.
This parameter can be set to Ph-N (Phase to Neutral) or Ph-Ph (Phase to Phase) with a
reverse feature to avoid re-wiring for phase correction to match the connection type
above.
E/F Primary.
This setting allows the user to program the primary current rating of the protection class
current transformer used to measure the earth fault current.
If a residual current transformer connection is used to detect earth fault then the same
setting as for CT Primary should be used.
If the Internal Residual Connection is used for earth fault protection then this setting is
hidden.
KW Sample Period.
This setting range 5 to 60 min in steps of 1min determines the period over which a
measurement is taken to integrate the Kilowatt Hours value.
P&B Engineering Issue 6 25/04/2005 Page 33