2 specifications and performance features cont’d – Toshiba 48-1250 A User Manual

Page 8

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TD - Series

- 2 -

TD Series

Digital Solid State Soft Starter 48 - 1250A

1.2 Specifications and Performance Features Cont’d

Note 1: Enabled via programming

Two Stage Electronic
Overload Curves

Starting: Programmable for Class 5 through 30
Run: Programmable for Class 5 through 30 when "At-Speed"
is detected.

Overload Reset (Note 1)

Manual (default) or automatic

Retentive Thermal Memory

Overload circuit retains thermal condition of the motor
regardless of control power status. Unit uses real time clock
to adjust for off time.

Dynamic Reset Capacity

Overload will not reset until thermal capacity available in the
motor is enough for a successful restart. Starter learns and
retains this information by monitoring previous successful
starts.

Phase Current Imbalance
Protection (Note1)

Imbalance Trip Level: 5 - 30% current
between any two phases
Imbalance Trip Delay: 1 -20 seconds

OverCurrent
(Electronic Shear Pin)
Protection (Note 1)

Trip Level: 50 - 300% of motor FLA
Trip Delay: 1 - 20 seconds

Load Loss Trip Protection
(Note 1)

Under Current Trip Level: 10 -90 % of motor FLA
Under Current Trip Delay: 1 - 60 seconds

Coast Down (Back Spin)
Lockout Timer (Note 1)

Coast Down Time Range: 1 - 60 minutes

Starts-per-hour Lockout Timer
(Note 1)

Range: 1 - 10 successful starts per hour
Time between starts: 1 - 60 minutes between start attempts

Type / Rating

Form C (SPST), Rated 5 amps
240 VAC max, (1200 VA)

Run Indication

Start/Stop or Start/End of Decel

At Speed Indication

At Speed/Stop or At Speed/End of Decel

Acceleration Adjustments

Programmable Ramp Types: Voltage or Current Ramp
(VR or CR)
Starting Torque: 0 - 100% of line voltage (VR)
or 0 - 600% of motor FLA (CR)
Ramp Time: 1 to 120 seconds
Current Limit: 200 - 600% (VR or CR)

Dual Ramp Settings

4 Options: VR1+VR2; VR1+CR2; CR1+CR2; CR1+VR2
Dual Ramp Control: Ramp #1 = Default,
Ramp = #2 selectable via dry contact input

Deceleration Adjustments

Begin Decel Level: 0 - 100% of line voltage
Stop Level: 0 to 1% less than Begin Decel Level
Decel Time: 1 - 60 seconds
Programmable to decel or coast to stop upon overload trip

Jog Settings
Jog function selected via
dry contact closure input)

Voltage Jog: 5 - 100%
Time of Voltage Jog: 1 - 20 seconds
Current Jog: 100 - 500%

Kick Start Settings
(Note 1)

Kick Voltage: 10 - 100%
Kick Time: 0.1 - 2 seconds

Fault Indications

Shorted SCR, Phase Loss, Shunt Trip, Phase Imbalance
Trip, Overload, Overtemp, Overcurrent, Short Circuit, Load
Loss, or Any Trip

Lockout Indicator

Coast Down Time, Starts Per Hour,
Time Between Starts, and Any Lockout

Programmable Outputs

Advanced Motor Protection

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