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RS485 MODULE D4 4DI 4DO

MECHANICAL CHARACTERISTICS

Case

Self-extinguishing plastic material class V0

Protection degree

IP40 on front panel, IP20 terminals side

Size

70 x 90 x 58 mm (4 DIN modules)

CURRENT INPUT

Aux. power supply

/- 10% 50/60Hz

Self consumption:

< 2 watt

MODELS

PFAB401-N2P

RS485 MODULE D4 230VAC 4DI 4DO

INSTALLATION GUIDE

Further documentation may be downloaded from our web site www.electrex.it.

This document is owned by company AKSE that reserves all rights. 

DECLARATION OF CONFORMITY

 

Akse hereby declares that its range of products complies with the following directives EMC 
89/336/EEC     73/23CE     93/68 CE   and complies with the following product’s standard 
CEI EN 61326 – IEC 61326    CEI EN 61010 – IEC 61010. 
The  product  has  been  tested  in  the  typical  wiring  confi guration  and  with  peripherals 
conforming to the EMC directive and the LV directive.

COPYRIGHT

Electrex is a trademark of Akse S.r.l. All rights reserved.
It  is  forbidden  to  duplicate,  adapt,  transcript  this  document  without  Akse  written 
authorization, except when regulated accordingly by the Copyright Laws.

WARRANTY 

This product is covered by a warranty against material and manufacturing defects for a 24 
months period from the manufacturing date.
The warranty does not cover the defects that are due to: 
• Negligent and improper use  
• Failures caused by atmospheric hazards 
• Acts of vandalism 
• Wear out of materials
• Firmware upgrades
Akse reserves the right, at its discretion, to repair or substitute the faulty products   
The warranty is not applicable to the products that will result defective in consequence of 
a negligent and improper use or an operating procedure not contemplated in this manual. 

RETURN AND REPAIR FORMALITIES

  

Akse accepts the return of instruments for repair only when authorized in advance. The 
transport costs are at customer charge. 

RE-SHIPPING OF REPAIRED PRODUCT

  

The terms for re-shipment of repaired products are ex-works, i.e. the transport costs are 
at customer charge.
Products returned as detective but found to be perfectly working by our laboratories, will 
be charged a fl at fee to account for checking and testing time irrespective of the warranty 
terms.

SAFETY

 

This instrument was manufactured and tested in compliance with IEC 61010-1 CAT III - 
300V class 2 standards  for operating voltages up to 300 VAC rms phase to neutral. 
In order to maintain this condition and to ensure safe operation, the user must comply with 
the indications and markings contained in the following instructions: 

• When the instrument is received, before starting its installation, check that it is 

intact and no damage occurred during transport. 

•  Before  mounting,  ensure  that  the  instrument  operating  voltages  and  the  mains 

voltage are compatible then proceed with the installation. 

• The instrument power supply needs no earth connection. 
•  The  instrument  is  not  equipped  with  a  power  supply  fuse;  a  suitable  external 

protection fuse must be foreseen by the contractor. 

•  Maintenance  and/or  repair  must  be  carried  out  only  by  qualifi ed,  authorized 

personnel 

• If there is ever the suspicion that safe operation is no longer possible, the instrument 

must be taken out of service and precautions taken against its accidental use. 

• Operation is no longer safe when:

1) There is clearly visible damaged. 
2) The instrument no longer functions. 
3) After lengthy storage in unfavorable conditions. 
4) After serious damage occurred during transport

The instruments must be installed in respect of all the local regulations.

OPERATOR SAFETY

Warning:

  Failure  to  observe  the  following  instructions  may  lead  to  a  serious  danger  of 

death.

• During normal operation dangerous voltages can occur on instrument terminals and 

on  voltage  and  current  transformers.  Energized  voltage  and  current  transformers 
may generate lethal voltages. Follow carefully the standard safety precautions while 
carrying out any installation or service operation.

• The terminals of the instrument must not be accessible by the user after the installation. 

The  user  should  only  be  allowed  to  access  the  instrument  front  panel  where  the 
display is located.

• Do not use the digital outputs for protection functions nor for power limitation functions. 

The instrument is suitable only for secondary protection functions.

• The instrument must be protected by a breaking device capable of interrupting both 

the power supply and the measurement terminals. It must be easily reachable by the 
operator and well identifi ed as instrument cut-off  device.

• The instrument and its connections must be carefully protected against short-circuit.

Precautions:

 Failure to respect the following instructions may irreversibly damage to the 

instrument.

• The outputs and the options operate at low voltage level; they cannot be powered by 

any unspecifi ed external voltage.

• The application of currents not compatible with the current inputs levels will damage 

to the instrument.

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