Functions (continued)

IP 67 monobloc I/O splitter boxes

 

for fieldbuses

 

Advantys™ Distributed I/O, FTB splitter boxes

Diagnostics

Example of connection of a sensor with integrated diagnostics function

M12 connector

1

2Diagnostic

3

4 (S)

DESINA

 

 

 

sensor

 

 

 

Example of connection of a standard sensor with the diagnostics adaptor

M12

 

M12 adaptor

 

FTX DG12

connector

 

(by-pass)

 

1

1

 

 

 

 

 

2Diagnostic

3

3

 

4 (S)

4 (S)

Sensor

Each Advantys FTB splitter box has one LED per channel to indicate the status of the channel and to enable fast and precise location of a fault. Fault monitoring diagnostics are indicated on the splitter box by LEDs and are fed back to the control system (PLC) via the bus.

There are 2 levels of diagnostics:

bdiagnostics per channel,

bdiagnostics per splitter box.

Diagnostics per channel

bSensor short-circuit

A short-circuit or overload on contact 1 of the M12 female connector blows the self- resetting fuse. Each M12 connector is individually protected. A red LED indicates the fault on the corresponding M12 connector. This fault is signalled to the Master. Supply to the sensors is automatically restored after elimination of the fault.

bActuator short-circuit

A short-circuit or overload of an output causes disconnection of this output. The fault is signalled to the Master. A red LED indicates the fault on the corresponding M12 connector. The output does not restart automatically. After having eliminated the cause of the fault, the channel must be reset by the PLC. This operation erases the short-circuit memory.

bActuator warning

When the output is at state 0, the contact corresponding to the M12 female connector is checked for presence of 24 V voltage. If + 24 V is present, it means there is a “short-circuit”. A red LED indicates the fault on the corresponding M12 connector. The fault is signalled to the Master.

Diagnostics per splitter box

bSensor/actuator supply status.

b“Undervoltage” fault on the I/O supply.

bSensor short-circuit.

bActuator short-circuit.

Use of the sensor/actuator diagnostics function

Advantys FTB splitter boxes allow the use of sensors and actuators incorporating an integrated diagnostics function (DESINA type c). Configuring contact 2 of each M12 connector as a diagnostic input enables detection of external faults associated with the sensors or actuators.

This information enables the following faults to be detected:

bdamage to the detection surface, b faulty electronics,

b no load.

Selection of either the sensor input or diagnostic input function on contact 2 is made channel by channel, by entering parameters, when configuring the splitter box. Fault indication by a red LED is possible for each channel configured as a diagnostic input (LEDs 10 to 17).

Example of connection of a sensor with integrated diagnostics function:

Using the M12 diagnostics adaptor accessory FTX DG12, it is possible to monitor breaks in wiring to sensors or actuators which do not have an integrated diagnostics function.

bDESINA - Standard relating to the connector technology of sensors, and actuators, established by the German Machine Tool Builder’s Association.

Description, configuration:

Characteristics:

References:

Dimensions:

pages 18 , 21, 24,

pages 26, 27

pages 28 - 30

pages 31 - 33

 

 

 

 

15

Courtesy of Steven Engineering, Inc. ● 230 Ryan Way, South San Francisco, CA 94080-6370 ● General Inquiries: (800) 670-4183 ● www.stevenengineering.com

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Quantum Instruments Splitter Boxes manual Diagnostics per channel Sensor short-circuit, Actuator short-circuit
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Splitter Boxes specifications

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