TD - Series
- 13 -
TD Series
Digital Solid State Soft Starter 48 - 1250A
5.1 Introduction
It is best to operate the motor at its full load starting condition to achieve the
proper time, torque and ramp settings. Initial factory settings are set to
accommodate general motor applications and provide basic motor protection.
Advanced features must be enabled via programming. The only parameter that
MUST
be set by the user is motor FLA (F001).
5.2 Digital Interface
The
TD
Soft Starter includes an intuitive, digital keypad with eight LEDs, seven
command keys, and an LED display with four alphanumeric digits.
Chapter 5 - Programming
MOTOR FLA (F001)
must be programmed
for unit to operate.
Reset
Clears the trip indicator and releases the trip relay.
Fn
Enters or exits the program mode.
Up Arrow
Navigates through the Status Display Mode, scrolls up through the list
of functions, increases the value of an active (flashing) digit, and scrolls
through the history of fault conditions.
Right Arrow
Each keypress shifts the active (flashing) digit to the right one position,
use to change function number or value.
Down Arrow
Navigates through the Status Display Mode, scrolls down through the
list of functions, decreases the value of an active (flashing) digit, and
scrolls through the history of fault conditions.
Left Arrow
Each keypress shifts the flashing digit to the left one position, use to
change function number or value.
Read Enter
Selects and stores the value of a function.
Power On
Control power is present.
At Speed
Motor is at full speed and power.
(The SCRs have phased fully on.)
Shorted SCR
Shorted SCR has been detected in the unit. Refer to section 8.2 for
instructions on checking SCRs.
Phase Loss
One or more of the phase currents is low or has been lost while the
motor was starting or running.
Over Temp
Motor starter has tripped due to heat sink over temperature.
Over Load
Starter's motor overload has tripped. The overload must be reset
before the fault can be cleared
Display
8888
4 digit 7 segment display
Keys
Green
LEDs
Two or more power poles are shorted and current is passing to the
motor while in the off mode. For positive motor protection, an auxiliary
relay should be be programmed for "Shunt Trip" and should be
interlocked with a shunt trip breaker or in-line contactor. (In the event of
a shunt trip, do not re-power the unit without repairing the power poles.)
Over Current
Over Current LED illuminates for two sets of fault conditions: over
current and short circuit.
If unit experiences output current (of any phase) in excess of the value
programmed in F034 (over current trip %) for the time period specified
in F035 (over current trip delay), this LED will illuminate and either
oCA, oCC, or oCd will be displayed.
If unit experiences a short circuit fault condition, the Over Current LED
illuminates and either SCA, SCC, or SCd will be displayed. This trip is
fixed at 10 times the full load motor current and is not adjustable.
Shunt Trip
Yellow
LEDs
