Important - tau SOFT-START BIG40Q Guía Para La Instalación

The auxiliary terminal block with three terminals has the following inputs:
• terminal 1 =
• terminal 2 =
terminal 3 =
•
Below is illustrated an explanatory connection example.
POTENTIOMETER LAYOUT
P1 P2
N.B. Disable the dynamic braking of the D703M control unit by setting dip 10 to OFF.

IMPORTANT:

• The 400V power supply voltage is selected by means of jumper SW1 on the D703M
control unit (see D703M instruction) before it is supplied with power.
• Only 2 of the 3 phases are connected to the D703M control unit when at 400V. Phase
R is connected to terminal 1 and phase S to terminal 2.
• In order to avoid the motor overheating, the overload cutout K3 must be set at a value
of 2.8 ÷ 3.5 A. This device also protects the Soft-Start control unit from excessive cur-
rent loads.
• Refer to the D703M control unit instructions manual for all other connections (photo-
cells, flashing lights, opening controls, safety devices).
12
unused
START-STOP command input (free contact)
OPEN = STOP; CLOSED = START RAMP
common inputs at zero volts
TERMINAL BLOCK
P3
CONTROL TERMINAL BLOCK
NC (Normally Closed)
AUXILIARY
1 2 3
SOFT-STARTER
NC
1 2
START-STOP COMMAND
open = stop
closed = start
3