CHAPTER 3 - INSTALLATION AND CONNECTION
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ATTENTION!
In the first power-up, in the models of 85A to 365A, if a contactor or a
circuit-breaker of insulation of the power supply with under voltage
release will not be used, to connecting the control power supply first,
program the minimum necessary parameters and only after connecting
the power supply.
X1E (33 and 34) is only available in the models fitted with cooling
fans;
For integral motor protection the installation of one or more PTC
thermistors (PTC at the DI6) or thermostats (external fault at
the DI4 to DI6) is recommended;
Remember that when a command via two-wire digital input is
used (the switch is normally open with retention), every time the
power supply returns, after any fault, the motor starts immediately
if the switch remains closed;
In case of maintenance services, remove the power supply fuses
or disconnect the power supply, thus ensuring complete
equipment disconnection from the power supply;
The emergency stop can be obtained by disconnecting the
electronics power supply.
The contactors must be of the same model and must support
the motor starting current. For safety reasons, auxiliary contacts
must be used to keep both contactors from closing at the same
time.
Use a digital input set to “General Enable” to dissable the motor
without braking. Use a digital input set to “No Braking”, for safety
reasons, with the possibility of putting a motor stop sensor to
disable the braking.
The use of an external By-pass contactor is optional for models
950A to 1400A that do not have an internal By-pass contactor.
This contactor is also recommended, in models with an internal
by-passs, for use in applications where the motor can frequently
present a blocked rotor during the full operation cycle.
To maintain the current indications and protections, when using
the external By-pass contactor, it is necessary to place the
current transformers in the soft starter output. The current
transformers must be placed in the correct positions and
directions as indicated.
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Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
