Liebherr MKUv 1610 User Manual download pdf (Page 12)

Terminating resistor

When connecting several appliances

via the RS485 interface, the terminat-

ing resistor must remain on the last

appliance.

Remove the terminating resistors

from the appliances in between.

External alarm

We recommend connecting the appliance

to an external alarm device.

There are various connection options at

thebackoftheappliance.

The appliance may only be connected

to an external alarm device by trained

personnel.

Floating alarm

output

Connectionto

RS485 interface

Note

The connectors are secured with

screws. To remove the connectors,

undo the left and right screws.

RS485 interface

Rx- / Tx-

Send/Receive data cable (negative

pole)

Rx+ / Tx+

Send/Receive data cable (positive

pole)

GND

Earth cable

N.O

Alarm output

Connectionforavisualwarninglightor

an acoustic alarm signal.

N.C

Operating light

Connectionforacontrollamptoindicate

that the appliance is in normal mode.

COM

External power supply unit

42V/8ADCmaximum

Minimumcurrent:150mA

Floating alarm output

These three contacts can be used to connect the appliance to

an optical or acoustic alarm device.

The connection is designed for a maximum of 42 V/8 A DC from

a safety extra-low voltage (SELV) source (minimum current:

150 mA).

Important

W h e n s u p p l y i n g m a i n s v o l t a g e t o t h e  o a t i n g a l a r m c o n t a c t ,

the technical safety requirements of standard EN 60335

will not be satised.

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Liebherr MKUv 1610 User Manual Page 12

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