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Automation 4 Less

Order light curtains and related controllers online at the A4Less Store.

Tapeswitch's B Series sensing unit itself constitutes a complete light curtain system. It provides two redundant solid state PNP type outputs. This system has been third party certified as a type 4 device in accordance with EN61496-1. These outputs can be interfaced directly into the machine control circuit, provided that the circuitry is compatible to the PNP type outputs (i.e. safety relays, emergency stop relay packages, fail-safe PLC's, etc.).

The outputs are actively monitored and are constantly checked by switching them off for 50 microseconds every 5.5 milliseconds. Care should be taken in selecting a proper interface to ensure that the interface is compatible to the B Series PNP type outputs. In some applications the B Series output configuration is not suitable for the machine control circuit and thus an intermediate relay package/interface unit should be considered.

Interface Units
Tapeswitch offers a variety of interface and control units to address all applications. All of the interface units provide isolation from the light curtain systems to the machine controls. All of the B Series interface units are self monitored and control reliable. All units perform the switching of the machine circuit using positively guided safety relays. All units have a minimum of two safety outputs. Several interface units are available which offer options and configuring the input power source, mounting package and type of electrical interface desired.

In addition to the light curtains, the C6 is specifically engineered for operation with various pressure sensitive, normally open switches (ribbon switches, sensing edges/bumpers, and switching mats).

 It is ideal for existing machines and end user and OEM applications. It will accept an input power source of 110/240V AC or 24V DC. It provides the necessary power to the B Series sensing unit emitter and receiver and monitors the output signals from the B Series sensing unit. 

The BSRSA provides two safety outputs which follow the state of the light curtain, and AUTOMATICALLY resume the on state once the obstruction is removed from the light curtain. Upon startup, power up, loss of power/power resumption or fault lockout condition, a front panel key or remote reset switch must be activated.

The BSRSA Controller provides a lockout contact which will be closed during normal operation and will open only when one of the above mentioned lockout conditions occur. Both the high power input (AC) and low power control voltage (24V DC) are internally fused. The safety output contacts are also fused along with the safety output contacts. 

The two safety outputs follow the state of the light curtain and AUTOMATICALLY resume the "on" state once the obstruction is removed.

There is no operator intervention required and no operator power up sequence necessary.The unit contains status and diagnostic indicators.
The BSRUA-2 can be used for application where up to two areas of a machine must be protected and the desired machine control is the same regardless of which sensing unit (light curtain) has been obstucted. It can also be used in application where multi-side protection is necessary and conventional use of mirror is impractical. The BSRUA-2 is ideal for many OEM and end user applications. 

In this mode no operator intervention or operator power up sequence is necessary. In the manual mode the two safety outputs will go to the "off" state once the light curtain is obstructed. The outputs will remain in the off state until an external (user supplied) reset switch is activated.

The SRUB is perfect for machines with an existing +24V DC control voltage. The small size along with the economical price make it ideal for many OEM applications.