Reer JANUS MJBOX Manual Download Page 1

 

 

8540705 • 18/12/2012 • Rev.6 

 

INTERCONNECTION MODULES 

 

JANUS MJBOX 

 

GENERAL INFORMATION 

The JANUS MJBOX modules are accessory devices designed to make the wiring of 
JANUS J and J TRX, JANUS M and M TRX light curtains fast and safe, and to provide 
the main controls necessary for their operation close to the protected gate.  

In addition to the guided contacts safety relays piloted and monitored by the light 
curtain, terminal boards for connecting the cables, bridges and dip-switch for the 
configuration of the light curtain itself are also present inside. 

 

DESCRIPTION 

Externally both models have: 
1.

 

Connectors for connecting with the light curtain (M23 for RX and M12 for TX)

2.

 

Fairlead for passage of cables towards the machine for: 

  

- power supply; 

  

-  connection  with  output  contacts  of  the  internal  safety  relays  and  static  

  

   outputs of the light curtain; 

  

- Muting enable signals from the outside; 

  

- output signals which indicate the status of the safety light curtain.  

The MJB1/MJB3 models also present: 

1.

 

Lighted restart button and output status / weak signal led. 

2.

 

Key selector switch for Override function. 

3.

 

Lamp to signal Muting/Override active. 

 
 

 

Figure 1 - MJB1/MJB3 

OVERRIDE 

KEY 

MUTING LAMP / 

OVERRIDE 

RESTART  BUTTON - 

OUTPUT STATUS LED 

CABLE 

FAIRLEAD 

RX 

TX 

(Janus) 

Summary of Contents for JANUS MJBOX

Page 1: ...tself are also present inside DESCRIPTION Externally both models have 1 Connectors for connecting with the light curtain M23 for RX and M12 for TX 2 Fairlead for passage of cables towards the machine...

Page 2: ...hout Muting function the following connections must be disregarded SW1 pins 1 2 3 4 CJ5 CJ7 pins 7 8 and CJ9 For the JANUS MI ML MT versions use of a muting lamp internal or external 0 5 5W is obligat...

Page 3: ...e configuration of the methods of the operating modes is described below This configuration is performed following the descriptions of the following tables setting the various jumpers connectors and d...

Page 4: ...ial timeout 30 sec on see paragraphs below off 1 2 3 4 5 6 7 8 Sequential timeout on see paragraphs below off ML MT MLS2 ML TRX 1 2 3 4 5 6 7 8 timeout 30 sec on n c see paragraphs below off 1 2 3 4 5...

Page 5: ...agraphs off ALL MODELS excluding versions TRX 1 2 3 4 5 6 7 8 TEST on see preceding paragraphs off OTHER CONFIGURATIONS NOT PERMITTED IF TO SELECT THE RANGE OF OPERATION SEL_RANGE1 AND SEL_RANGE2 PIN...

Page 6: ...n be fixed to the wall using the proper plastic brackets inserted in the holes placed on the box rear side corners These brackets can easily rotate to reach 90 The light curtain must be connected to t...

Page 7: ...put of Muting enable only for cur M TRX Figure 5 Internal scheme of contacts available on safety relays of MJB1 MJB2 and MJB3 MJB4 SIGNALS SIGNAL MJB1 MJB3 MJB2 MJB4 CONDITION MEANING CONDIZIONE MEANI...

Page 8: ...commutable voltage 10Vac 10Vdc Max commutable current 2A Min commutable current 10mA 24Vdc Number of commutations life 50 x 103 el 40 x 106 mech 1N C DO NOT USE AS A SAFETY CONTACT SAFETY DATA FEEDBAC...

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