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Machine Safety Terminology

From Schmersal Inc.
 

 
Authorized Output: an output from a safety controller's positive-guided relays (used to "authorize" or "enable" a machine's start circuit when safety system conditions exist). Also known as "safety output." Automatic Reset: a safety controller reset circuit that automatically resets the safety controller when safe system conditions (no system faults) exist. A manual reset button is optional. Auxiliary output: a non-safety related contact closure or semiconductor output primarily used for signaling component or system status to a PLC, audible alarm or visual indicator (such as a stack light). Also called a "signaling contact" or "auxiliary monitoring contact". ANSI (American National Standards Institute): an association of industry representatives who, working together, develop safety and other technical standards. Auxiliary monitoring contact: See "auxiliary output". BG (Berufgenossenschaft): an independent German insurance agency whose legislative arm recommends industry safety practices. One of many "notified bodies" authorized to certify that safety products comply with all relevant standards.
Products & Services
Safety mats are presence-sensing devices used to guard a floor area around a machine or robot. Search by Specification | Learn more about Safety Mats
Light curtains are photoelectric transmitters that project an array of synchronized,parallel infrared light beams to a receiver unit. When an opaque object interrupts one or more beams, the light curtain controller sends a stop signal to the guarded machine. Light curtains are used as personal safety devices around hazardous machinery or for permiter guarding. Search by Specification | Learn more about Light Curtains
Pressure-sensitive safety edges and safety bumpers are machine safeguarding devices that sense changes in pressure. Search by Specification | Learn more about Pressure Sensitive Safety Edges and Safety Bumpers
Safety sensors are used for machine safeguarding. Types of safety sensors are break-a-beam switches, interlocks and tag out devices, perimeter guards, photoelectric safety sensors, safety blocks, safety interlock switches, and safety sensor switches. Learn more about Safety Sensors
Machine safeguarding, presence sensing devices control machine operations and protect personnel by detecting the presence of objects that could interfere with or be harmed by machinery. Search by Specification | Learn more about Machine Safeguarding and Presence Sensing Devices
Product Announcements
Schmersal Inc. - Safety Relays and Controllers
Safety controllers are designed to increase the level of safety in machine guarding and/or E-stop control circuits. They feature redundant, dual channel, cross monitoring logic circuits. These... (read more)
Schmersal Inc. - Solenoid-Latching Safety Interlock Switch
The AZM161 is designed for machines/work cells where access to a hazardous work area must be controlled until safe conditions exist. Their solenoid-latching feature permits locking a machine guard... (read more)
Euchner-U.S.A., Inc. - Safety Relays ESM-F
EUCHNER ESM-F Modular Safety System is an innovative design interconnecting safety modules and reliably turn off hazardous machine functions in the event of an unsafe condition. It will also ensure... (read more)
Pilz Automation Safety L.P. - Compact Non-Contact Safety Switch
Keeping industrial safety devices secure and under control is assured with the new PSEN 2.1-10 non-contact magnetic safety switch from Pilz Automation Safety L.P. (read more)
HSA USA - Barcode Scanner Controller
Provides key-switch "teach" functionality, pushbutton reset, indication lights, buzzer and external device plug-in connector, so wiring is not necessary. Provides 100% inspection of Barcodes. With the... (read more)
Schmersal Inc. - Solenoid-Latching Safety Interlock Switch
The AZM170 is designed for machine cells where access to a hazardous work area must be controlled until safe conditions exist. Their solenoid-latching feature permits locking a machine guard until... (read more)
DRI-STEEM Corporation - Vapor-logic®4 Microprocessor Controller
Accurate, comprehensive control for GTS® humidifiers Includes remote access and Modbus®, BACnet®, and LonTalk® interoperability Vapor-logic4, the newest controller from DRI-STEEM®, offers the same... (read more)
Schmersal Inc. - CSS 180 Non-Contact Safety Sensor
The CSS 180 non-contact, electronic safety sensor is designed for application in safety circuits and is used for monitoring the position of movable safety guards. In this application the safety sensor... (read more)
Topics of Interest
Safety controllers (such as SCHMERSAL's AES and AZR Series) are connected between machine guarding interlock/E-Stop switches and the machine's stop control elements (such as a motor contactor or... (Read More)
The Conceptual Design Process The conceptual design process for a safety instrumented function begins with a Safety Requirements Specification (SRS). The SRS is an important document. It should... (Read More)
Neither OSHA or ANSI certifies any safety device or system. However, there are many independent third-parties (notified bodies such as UL, CSA, or TUV) that can test and certify safety devices for... (Read More)
"Protected height" is the length of the light curtain's active sensing area... that is the distance from center of the first beam to the center of the last beam in the light curtain's... (Read More)
Vibration monitoring of critical and auxiliary pumping systems helps improve machine reliability, safety, and production capability. Dynamic and positive displacement pumps produce vibrations... (Read More)
See more product announcements for Safety Mats
Safety Pressure Mats

Safety Pressure Mats
Schmersal Inc.


Stop! Keep your options open with EAO

Stop! Keep your options open with EAO
EAO Switch Corporation


XL Series Gates

XL Series Gates
FabEnCo, Inc.


11 See more product announcements for Safety Mats