TOSHIBA- 19
TX Series 48 - 1250A
3.5 Sequence of Normal Operation
• Apply control power and check that the “Power” LED comes on.
(Display 1)
• Apply three phase power to the unit. The motor should run only when the
start command is applied.
• Apply the start command. (Display 2). The RUN LED will be lit. (Display 3)
The AUX3 LEDs will be lit. If the motor does not enter run mode in the set
time, a trip will occur.
• The POWER, RUN, AUX3 LEDs will be lit, indicating that the contact has
energized. IA, IB, IC will display the current setting for Phase A, Phase B,
and Phase C and the G/F indicates ground fault. (Display 4)
• When the motor reaches full speed, the “AUX4” LED (At Speed) will be lit.
• If the motor decelerates, or stops, during the acceleration period, hit the
stop button immediately and open the disconnect line. If the unit does not
follow this operational sequence, please refer to the Troubleshooting
Chapter.
It is best to operate the motor at its full load starting condition to achieve the
proper time, torque and ramp settings. Initial settings are set to accommodate
most motor conditions. TRY INITIAL SETTINGS FIRST. See Setpoint Page 2
to make any adjustments.
• Initial Voltage
• Soft Start Curve
• Current Limit
• Acceleration Time
If decel is enabled, the following parameters for Deceleration Time, Start Decel
Voltage (see SP2) and Stop Decel Voltage (see SP2) must also be pro-
grammed.
MOTOR STOPPED
READY TO START
MOTOR STARTING
00 X FLA
OVERLOAD ALARM
TIME TO TRIP: XXX SECS.
IA: _ _ _ IB: _ _ _
IC: _ _ _ G/F: _ _ _
1.
2.
3.
4.
