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Safety light curtain, Solenoid interlock, Light barrier, Relay, Safety relay
Text version of the page
MULTIFUNCTION SAFETY UNITS 17 Terminals B2 – 0V DC supply - 0V DC output for connecting to the light curtain TX. Terminals B3 – 24V DC supply - + 24V DC output for connecting to the light curtain RX. Terminals B4 – 0V DC supply - 0V DC output for connecting to the light curtain RX. Terminal B5 and B6 – light curtain inputs (OSSD1 and OSSD2) Connect the electronic output switches (OSSD1 and OSSD2) of a 1000 Plus Series light curtain to terminals B5 and B6 respectively. Terminals B7 and B8 – Reset - If the MFU is required to be in the latch mode a suitable switch should be connected between terminal B7and terminal B8. If the safety output relays de-energise a depression of the switch is required to re-energise the output switches to an ON condition.The MFU’s safety output switches will only re-energise when the reset switch is depressed and then released.If the MFU is required to operate in an automatic reset condition do not connect a switch to terminals B7 and B8. However, it is necessary to link terminal A3 to terminal A4 before an automatic reset condition can be established. Terminals B9 – No connectionsTerminal B10, B11 and B12 – Safety output 2 switch contacts -Terminals B10, B11 and B12 are the output connections to safety relay 2 changeover switching contacts. Terminal B11 is the common output, with terminal B12 as the normally open switch and B10 as the normally closed switch. Normally, terminals B11 and B12 would be connected to one channel of a machine’s stop circuitry. For example, via an external power switching relay or, directly to a safe PLC input or to a machines final control element.Connect terminals A5 and A6 to one channel of a machine’s stop circuitry, for example, via an external power-switching relay or, directly to a safe PLC input or a machines final control element.
Note : If a single channel safety circuit is used link terminals A12 and B11.Terminals A11 and B12 are then connected to the machine’s safet y circuit. Connecting in this way links safety output switch 1 and safety output switch 2 in a series configuration. 1 000 PL US S ERIE S
Note : If a single channel safety circuit is used link terminals A12 and B11.Terminals A11 and B12 are then connected to the machine’s safet y circuit. Connecting in this way links safety output switch 1 and safety output switch 2 in a series configuration. 1 000 PL US S ERIE S