Door Switch SG-P

When one of the safety switches connected in series enters a non-detection state, the indicators of all other safety switches flash in green to notify the operator.

The indicator of the safety switch on the closed door flashes to notify the unsafe condition. The indicators of the safety switches on all other closed doors that are interlocked with the open door flash in green to notify the unsafe condition.

The indicator of the safety switch on the open door lights in bright red. The indicator of the safety switch on the open door lights in bright red so that the operator can recognize at a glance which equipment door is open.

When a door is intentionally kept open, the indicator of the safety switch on that door changes to red and the indicators of the safety switches on all other doors flash in green.
The operator can recognize immediately the equipment status and which door is open.

BEFORE  Conventional system When one of the doors was kept open, the indicators of all other interlocked safety switches turned off so there was no way of knowing which door was open without checking each door. When the safety switch was installed on the inner side of the door, the indicator of the safety switch was not visible from the outside of the equipment area in some cases.

The SG-P series standard units, which are used as master units, can output safety signals all at once (OSSD1 / OSSD2).
The sub units used as slave units minimize the wiring for a cascade connection.
There is no need to purchase a dedicated controller. The presently used safety controller / circuit can be connected directly. Up to 30 units can be connected, thus contributing to wire-saving.

* High-code models (SG-P20□-M-□, SG-P20□-S) only

During the initial setting, bring the switch body close to the actuator and turn on the power to let the safety switch detect the actuator for 3 seconds. This simple procedure completes the pairing. In a cascade connection, pairing can be achieved all at once by simply turning on the power. This reduces the man-hours required for starting up the equipment.
* Low-code models (SG-P10□-M-□, SG-P10□-S) do not require pairing.

The ISO 14119:2013* international standard stipulates a design requirement that deactivations of safety functions shall be minimized.
Export of equipment sometimes requires to meet this standard. The SG-P series products are available with two different coding levels: High-code models and Low-code models. The High-code models are compatible with ISO 14119* coding level (high level coded actuators) and prevent intentional deactivation of their safety function.
* ISO 14119: Safety of machinery – Interlocking devices associated with guards – Principles for design and selection

One-touch Installation and Easy Construction of Maintenance Mode

Mounting the maintenance actuator to the SG-P unit enables the control output function for the maintenance mode.
The following two types of maintenance actuators are available:
Overall maintenance type (SG-PK-M1)
Individual maintenance type (SG-PK-M2)

■ One-touch installation

* Individual maintenance type actuator (SG-PK-M2) is mounted on a compact type unit in the above example.

Indicating the name of the department that owns the maintenance actuator and the name of person in charge on a commercially available key tag and attaching it to each unit makes it easy to manage the users.

Large and Bright Indicator for the Notification of Maintenance Mode Status to Workers

When the SG-P unit is mounted with the maintenance actuator, the large indicator lights in “yellow”.
The workers can readily recognize that the equipment is in maintenance.

* Compact type unit is shown above as an example.