Toshiba 48-1250 A Manuale Utente

SP3.12 Overvoltage Trip Level: Typically used to

indicate that the line voltage is too high and at
which point a trip occurs

• Overvoltage Trip Delay: The amount of time

that the overvoltage condition must exist before a
trip will occur.

SP3.13 Undervoltage Alarm Level: Typically used to

indicate when the line voltage is too low.  This is
an alarm level.

• Undervoltage Alarm Delay: The amount of

time that the overvoltage condition must exist
before a trip will occur.

SP3.14 Undervoltage Trip Level: Typically used to

indicate that the line voltage is too low and at
which point a trip occurs

• Undervoltage Trip Delay: The amount of time

that the undervoltage condition must exist before
a trip will occur.

SP3.15 Line Frequency Trip Window: The acceptable

amount of drift above or below the line frequency
before a trip is generated.

• Line Frequency Trip Delay: The amount of

time that the frequency drift condition must exist
beyond the window before a trip will occur.

SP3.16 Power Factor Lead Alarm:  Typically used to

indicate a leading power factor.

• Power Factor Lead Alarm Delay: The amount

of time that the power factor lead condition must
exist beyond the window before a trip will occur.

SP3.17 Power Factor Lead Trip: The acceptable

amount of power factor lead before a trip is
generated.

• Power Factor Lead Delay: The amount of time

that the power factor lead condition must exist
beyond the window before a trip will occur.

SP3.18 Power Factor Lag Alarm: Typically used to

indicate a lagging power factor.

• Power Factor Lag Alarm Delay: The amount of

time that the power factor lagging condition must
exist beyond the window before a trip will occur.

SP3.19 Power Factor Lag Trip: The acceptable

amount of power factor lag before a trip is
generated.

• Power Factor Lag Delay: The amount of time

that the power factor lag condition must exist
beyond the window before a trip will occur.

SP3.20 Power Demand Period: The TX Series

measures the damand of the motor for several
parameters (current, kW, kvar, kVA).  The
demand values of motors assists in energy
management programs where processes may
be altered or scheduled to reduce overall
demand.  Demand is calculated by a
programmed amount of time where current, kW,
kvar and kva samples are taken and then
averaged and stored to assess demand.