Toshiba 18 - 1250 A - Manual (Page 8)

TE Series Digital Solid State Soft Starters 18 – 1250A
1
Chapter 1 - Introduction
1.1 General Description
The TE Series is a digitally programmable solid-state reduced voltage
soft starter. Its six SCR design features a voltage/current ramp with an
anti-oscillation circuit for smooth load acceleration. The SCRs are sized
to withstand starting currents of 350% for 30 seconds and up to 600%
for 10 seconds. The TE Series features smooth, stepless ramp control,
which reduces motor inrush current and excessive wear on the
mechanical drive train components. The TE Series includes a
programmable keypad for setting operating parameters for the ideal
starting cycle and protection features, plus easy to understand
diagnostic LEDs. Starting torque, ramp time, current limit, dual ramp,
and Decel control are standard features on the TE Series, as well as
the integrated Batch Process Timer and Time Clock Controller used for
automated applications. By simply adjusting the unit’s starting torque,
ramp time and current limit functions, the starting electrical
characteristics of the motor can be matched to the mechanical
characteristics of the drive train for controlled acceleration of the load.
The TE Series includes solid-state electronic overload protection in
addition to numerous other protective features. It requires 120VAC
(240VAC optional) control power and uses dry contact inputs for Start /
Stop control. Programmable auxiliary contacts and provisions for
interlocking are also included.
1.1.1 Control Features
Acceleration Adjustments
Programmable Ramp Types:
Voltage Ramp (VR) or closed loop Current Ramp (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:
Ramps 1 & 2 = VR,
Ramp 1 = VR, Ramp 2 = CR,
Ramps 1 & 2 = CR;
Ramp 1 = CR, Ramp 2 = VR
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
Kick Voltage: 10 - 100%
Kick Time: 0.1 - 2 seconds
Process Timer
(2 modes)
Minimum Batch Timer: Runs until timer expires
Maximum Batch Timer: Runs unless timer expires
Range: 0 - 9999 minutes
Real Time Clock (RTC)
Controller
24/7 Time Clock Controller
Range: 1-24 hours, and 1- 7 days per week,
1 - 7 start events per day, works with Process Timer for run time