Safety Gate Monitors / Switches

Safety gate monitoring modules watch the position of movable safety devices by interrogation of safety switches which are operated by safety device opening/closing.

Advantages

Safety gate monitoring

Wide range of products for a variety of applications
All products comply with the safety category 4 acc. to EN 954
Type-tested circuits in compliance with relevant norms
Prewired modules for DIN rail mounting

Safety switches

Reliable position monitoring of safety devices, e.g. safety gates
Suited for raw environments thanks to hermetically sealed housing up to IP 67
Long service life by wearless switching and proximity operation

Technology

Safety gate monitoring

Safety gate monitors are designed to comply with the safety category 4.

Line faults and interruptions can be detected by XOR arrangement (combination of NO and NC contacts).

Depending on model the position switches can be monitored for simultaneity with different time tolerances.

Safety switches

Safety switches are available either as Reed switches or with semiconductor outputs. They consist of an actuator and a sensor as decoder. The actuator is magnetically encoded. Sensor contacts switch when the sensor detects the encoding of the actuator.

DOLD’s safety switch NE 5020 has a cross fault detection function. When a fault occurs the output contacts of the evaluator are cut off for safety reasons and a restart is prevented. The safety switches are protected against short-circuit currents and interfering voltage pulses.

Applications

Safety gate monitoring

Safety gate monitors can be used for all applications where movable protective devices (safety gates) are required. This is the case where entering into or access to an area with dangerous movements for the purpose of machine operating, setting or fault elimination require such a safety device.

Safety switches

Proximity-operated safety switches are suited for position monitoring of sliding, hinged or detachable safety gates and guards, even in heavily polluted environments or for applications with stringent hygienic requirements. These products can also be used for sluggishly or inaccurately closing gates.

Function	Cat. / PL acc. to EN 13849-1*	SIL CL acc. to EN 62061*	1-channel/ 2-channel	Output contacts, max.	Thermal current Ith [A] max.	cross fault detection	nominal voltage		Removable terminals	Width [mm]	Type
Safety gate monitoring modules SAFEMASTER
							DC	AC
Emergency stop module/ safety gate monitor	4 / e	3	1; 2	2 NO	10 A	+	+	+		45	BD 5987
Safety gate monitor for applications acc. to EN 201	4 / e	3	2	3 NO	5 A	+	+		+	45
Emergency stop module/ safety gate monitor	4 / e	3	1; 2	3 NO	7 A	+	+	+	+	22.5	BG 5925/920
Emergency stop module/ safety gate monitor	4 / e	3	1; 2	3NO, 1 NC	10 A		+	+		100
Emergency stop module/ safety gate monitor	4 / e	3	1; 2	3 NO, 1 NC	10 A		+	+		100	BN 5983
Emergency stop module/ safety gate monitor	4 / e	3	1; 2	3 NO, 1 NC	10 A	+		+			BN 5930.48/203, BN 5930.48/204
Emergency stop module/ safety gate monitor	4 / e	3	1; 2	3 NO, 1 NC	10 A	+	+	+		45	BD 5935
Emergency stop module with delay up to 600s/Safety gate monitor	3 / d	3	1; 2	3 NO, 1 NC, 1 NO contact delayed	10 A	+	+	+	+	100	BO 5988.47
Emergency stop module with delay up to 300s/Safety gate monitor	4 / e	3	1; 2	3 NO, 3 NO contact delayed	5 A	+	+		+	45	BH 5928
Emergency stop module with delay up to 300s/Safety gate monitor	4 / e	3	1; 2	3 NO, 3 NO contact delayed	5 A	+		+	+	67.5	BH 5928
Emergency stop module/ safety gate monitor	4 / e	3	1; 2	4 NO	5 A	+	+	+	+	22.5	LG 5925
Emergency stop module/ safety gate monitor	4 / e	3	1; 2	6 NO, 1 NC	10 A	+	+	+	+	100	BO 5988.61
Switch gear for safety switch	4 / e	3	1; 2	4 NO	8 A	+	+	+	+	22.5	LG 5925/920
NO = normally open contact, NC = normally closed contact, NO contact delayed * Please check state of approval of idividual devices in the latest data sheet. For several monitored safety gates in combination with further safety functions see SAFEMASTER C and SAFEMASTER M

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