De-sta-co F5-B AC Inverter Drive Manuel d'utilisateur télécharger pdf (Page 23)

N/L2

X1A

OH1

OH2

= 90°C

Braking resistor connection with high temp disconnect feature

• The resistor has a NC

mechanical switch type

temperature sensor.

• If the resistor becomes too

hot, the sensor switch

opens and disconnects the

COMBIVERT F5 from the

supply voltage.

• In the event of a complete

failure of the internal

braking transistor, this is

the only way to disconnect

the resistor from the power

source!

120 or 24 V AC/DC

Installation and Connection

N/L2

X1A

= 90°C

(180°C)*

twisted wires

Braking resistors can develop very high surface

temperatures, therefore install away from other

devices, above the motor control and where people

can not inadvertently come in contact with it.

* The panel mount breaking resistors listed on page 22 have a NC thermal contact rated

at 180°C/356°F. Back mount resistors have a thermal contact rated at 90°C/194°F.

Braking resistor connection with high temperature drive fault

• The resistor has a PTC type sensor and is connected to the

T1, T2 terminal on the COMBIVERT F5. If a motor

temperature sensor and braking resistor sensor is used they

should be placed in series. Note: if the braking transistor in

the unit fails, there is no guarantee the voltage to the resistor

will be shut off!

3.4.3 Connection

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De-sta-co F5-B AC Inverter Drive Manuel d'utilisateur Page 23