Operating industrial robots and welding equipment safely
Medium-frequency welding systems are used in many production systems. These are generally welding robots which are fitted with the corresponding welding tongs. Simple, efficient monitoring of the system requires visualization of the fault current which is both meaningful and easy to interpret. This makes operating the system easier for the technical personnel and allows rapid response in the event of a fault. The AC/DC sensitive ground-fault monitoring devices (residual current monitoring devices (RCMA)) from Bender are considered the leading technical solution. They are built into the feed system before the weld converter and thus monitor not only the weld current circuit for fault currents. This means they protect you reliably against personal injury and damage to machinery.
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Recommended systems for ground-fault detection (ungrounded systems):
Recommended systems for ground-fault monitoring (grounded systems):
Recommended measuring current transformers:
Analysing and reporting:
Electrical safety in low voltage distribution systems up to 1 000 v a.c. and 1 500 v d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 8: Insulation monitoring devices for IT systems
EN 61557-9
Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 9: Equipment for insulation fault location in IT systems
EN 61557-15
Electrical safety in low voltage distribution systems up to 1000 V ac and 1500 V dc - Equipment for testing, measuring or monitoring of protective measures - Part 15: Functional safety requirements for insulation monitoring devices in IT systems and equipment for insulation fault location in IT systems
IEC 60204-1
Safety of machinery - Electrical equipment of machines - Part 1: General requirements
DIN EN 50178
Electronic equipment for use in power installations