■For your safety
In using the light curtain, please establish a control system to satisfy the below items in order to ensure safety with a total system.

>>Precautions for use

With a slimness of 13mm 0.512 in, SF4C fits effieiently into small equipment

A variety of applications for simplified equipment [Large multi-purpose indicator]

The bright LED indicators located in the center of both sides of each light curtain can be illuminated green or red by using external inputs. There is no need for setting up a separate indicator, so that equipment is consolidated.

■Applications

Slim size for efficient applications

Available work space is expanded from the previous model, and productivity is improved.

IP67 protection structure

An IP67 (IEC / JIS) rating is achieved with an ultra-slim size for protection from environmental factors.

Industry first^*! Wire-saving when connecting to safety devices [Safety input function]

Contact outputs such as an emergency stop switches or a safety door switches can be connected to the light curtain.
Also, by using the handy-controller SFC-HC up to three sets of light curtains can be cascade connected for a consolidated safety output.

■Direct connection of safety devices

A safety relay unit is needed for connecting safety devices other than light curtain.

Direct connection of various safety devices is possible for a simplified safety circuit.

■By using the handy-controller SFC-HC up to three sets of light curtains can be cascade connected for a consolidated safety output. (Note)

Three sets of light curtains require three sets of safety relays.

Individual monitoring on light curtains is possible while the outputs of three sets of light curtains and other safety devices are consolidated in one unit.

Beam-axis alignment indicators help to reduce startup time

The beam channels of the light curtain are displayed in four blocks so that incident light position is shown at a glance. When the beam channel at the bottommost channel (or topmost channel), which is used as a reference for beam-axis alignments, is correctly aligned, the LED blinks red. After this, each block lights red as the beam axes successively become aligned. When all channel beam axes are aligned, all LEDs light green. The display also has a stability indicator (STB) added so that setup can be carried out with greater stability.

A single model supports both PNP and NPN polarities reducing model numbers

PNP transistor output and NPN transistor output are combined in a single model. Overseas equipment that uses PNP, replacement with NPN sensors, factories that are positively grounded, and transfer of equipment overseas are all situations where the control circuits for a single model are suitable for use worldwide.

Safety circuit is constructed without the need for a safety relay unit [External device monitoring function]

The light curtain has a built-in external device monitoring function (such as deposited relay monitoring) and an interlock function. This allows a safety circuit to be constructed so that a separate safety relay unit is not needed, and the control box has become smaller to help to achieve to lower costs.

The light curtain can directly connect to external devices (safety relay, etc) without an exclusive control unit. This allows for simplified equipment, cost reduction, and error prevention.

●Recommended safety relay

Safety relay
Panasonic Electric Works Ltd.
SF series

Safety, productivity, and cost reduction [Muting control function]

The light curtain has a built-in muting control function that causes the line to stop only when a person passes through the light curtain, and does not stop the line when an object passes through. The muting sensors and muting lamps can be connected directly to the light curtain.
Furthermore, the large multi-purpose indicators can be used as muting lamps, which contribute to less wiring troubles, improvement of safety and productivity, and cost reduction.

* If a failure diagnosis of muting lamp is needed as by the result of risk assessment, use the handy-controller SFC-HC to change the setting, and connect the muting lamp output wire (red) of this light curtain to an incandescent lamp separately.

Lightweight!

The SF4C series is made of resin that is approx. 45 % lighter than the conventional aluminum case type. Its lightweight body eases the burden on the mounting surface of the equipment and contributes to overall reduced weight during equipment transportation or overseas shipment.