Toshiba VF010H05 Manual

A SERVICE OF

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JKSSS+ Series - 68

JKSSS+ Series 2.3 - 4.2KV

   Sets the value

in the thermal register which represents a

motor running at the nameplate current (with

no overheating or negative sequence currents

present).

•  Use the

data from the motor manufacturer’s specications.

When RTDs are used, this setpoint will be the

base point for the RTD biasing of the Thermal

Register.

  Use the data

from the motor manufacturer’s specications. This

setpoint denes the operating temperature rise of

the motor at full load amps or 100% load.

   This represents

the maximum temperature the stator insulation

will withstand. The user may choose to use

the temperature setting of the insulation class

(selected in Setpoint Page 1) or enter a specic

maximum temperature. This value should not

exceed the stator’s insulation temperature. This

maximum temperature represents 100% thermal

capacity.

   Always enabled.

It allows the soft starter to use the line current

imbalance information to bias the Thermal

Register.

  When the setpoint

is set to ON the controller will calculate the k

constant factor for biasing the thermal register, or

the user may choose to assign the k value.

  Allows

the level three password user to clear the thermal

register for emergency restarts.

SP.12SystemSetpoints(SetpointPage12)

(SecurityLevel:3)

  This setpoint group

allows the user to choose the default screen the

soft starter displays while the motor is running.

Select the metering page number (1-3), then

select the metering screen number. The range

varies depending on the selected page. To display

a default screen, program the following two

setpoints:

  : Range is Page 1 - 3.

  : If Page 1 is selected

as the default page, then Screens 1- 10 are

available. If Page 2, Screens 1-29 are available.

If Page 3 is selected, then Screens 1-6 are

available. (See Metering Menu, MP.1, for screen

number assignment.)

  Congures the RTD failure alarm and the

thermal register alarm.

   If enabled, and an RTD

shorts or open, an alarm occurs.

   Sets a level in the

thermal register to generate an alarm when the

Thermal Register Capacity Used has exceeded

this level.

   The amount of time that

the Thermal Register Used must exceed the

setpoint before an alarm condition will occur.

  This

setpoint group will congure the thermal register

and indicate to the soft starter which inputs to use

when thermal modeling.

  Enter the time from the motor

manufacturer’s specication sheet or use the time

dened by the OL Class. This setpoint is used to

dene the thermal capacity of the motor.

  Enter the amount of time

specied by the motor manufacturer or use half of

the time dened by the OL Class.

  : The time the motor

requires to cool down after it has stopped. Use

only the data provided by the motor manufacturer.

This setpoint is used to congure the cooling rate

of the thermal register.

   The amount of

time the motor requires for cooling down while

running. Use only the data provided by the motor

manufacturer.

   When RTDs are

used, the soft starter can be congured to use the

measured cool rates from the RTDs instead of the

programmed settings. This setpoint should only be

enabled when RTDs are present.