Reer JANUS MJBOX Manual

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.
RESTART BUTTON -
OUTPUT STATUS LED
8540705 • 18/12/2012 • Rev.6
INTERCONNECTION MODULES
JANUS MJBOX
MUTING LAMP /
OVERRIDE
KEY
Figure 1 - MJB1/MJB3
OVERRIDE
(Janus)
RX
CABLE
FAIRLEAD
TX
9