LS Control SpeedControl E 1045 - Description of Functions; Supply; Control Voltage; RUN Input

User Guide for SpeedControl E 1045
• LS Control A/S • Industrivej 12 • DK –4160 Herlufmagle Page 6
• Tel: +45 5550 5550 • Fax:+45 5550 2265 • www.lscontrol.com • lsc@lscontrol.dk
Description of Functions
Supply
The frequency converter is supplied by 230VAC ±10%. However it is possible to lower the voltage, but it
must be noted, that the power of the asynchronous motor will be lowered as the main supply voltage
decreases. It is not recommended to use a supply less than 200VAC.
Control Voltage
1 – 10 Vdc = min. rpm – max. rpm (6 phase motor => 200rpm – 1000rpm => 10 – 50 Hz). If control voltage
gets lower than 1 Vdc the frequency converter will run min. rpm. The control voltage levels can be adjusted
via the Modbus-interface. (See chapter on Modbus).
RUN input
If the RUN input is activated (added to GND from internal supply) the frequency converter will start the
motor. The RUN input can be disabled through the Modbus-interface. (See chapter on Modbus).
DIR Input
DIR controls which way the motor will run and it can only be updated/changed when the motor is not
running. If the DIR input is activated (added to GND from internal supply) the frequency converter will
change direction, but only when the motor is at a stand still.
LSC Input
The LSC input can be used with a thermal switch (e.g. a Klixon) or a thermistor. By default it is setup for use
with a thermal switch. This can be changed via the ModBus-interface. (See chapter on Modbus).
Thermal switch
If LSC input is used with a thermal switch (e.g. a Klixon), connect thermal switch between connector 1 & 2.
When the thermal switch is closed = all is okay. If thermal switch is open for more than 6 seconds a thermal
Error is indicated, and motor is stopped. If thermal switch is not used, connector 1 & 2 must be shortened.
Thermistor
If the LSC input is used with a thermistor, connect the thermistor between connector 1 and 2. The function
of the thermister is setup via the ModBus-interface (see chapter on Modbus). When the thermistor exceeds
the setup temperature for more than 6 seconds, a thermal error is indicated, and the motor will stop. The
E1045 will try to restart, when the thermistor has fallen below the setup temperature minus the hysterese
value for more than 6 seconds. The thermistor function can be setup for a NTC thermistor or a PTC
thermistor via ModBus interface. See the ModBus chapter for setup details.
Alarm Relay
The frequency converter is supplied with an alarm relay which is activated when there are no faults. If the
frequency converter must stop due to severe error, the relay will be deactivated (it changes position). The
alarm relay is deactivated when supply is disconnected. The function of the alarm relay can be changed via
the Modbus-interface. (See chapter on Modbus).