Programmable relay module GMA200-RTD

safetyDIN rail

The relay module GMA200-RTD with color display adds 16 individually programmable relays with one floating signal change-over contact each to a controller of the GMA200 series or GMA22. This allows additional safety measures, such as visual and audible alarms or ventilation systems to be operated via the controller. The relay module comes with LED indicators and is connected via RS-485 interface. The GMA200-RTD is installed by DIN rail mounting (TS35) or in a control cabinet. GfG controllers and certain transmitters have internal relays. External alarm devices such as information signs, warning lights and signal horns can thus be directly connected and managed. The same applies to measurement-controlled ventilation systems and valves. Complex gas warning systems, however, require a large number of automatic safety measures that are initiated when the defined gas limit values are exceeded or undershot. Up to four relay modules GMA200-RTD can be connected to the GfG controllers via the RS-485 interface. The total number of relays per gas detection computer can thus be increased by up to 64. The GMA200-RTD is equipped with 16 relays, each with a floating signal changeover contact. In addition to 16 external alarm devices or other measurement-controlled devices and functions, an external pushbutton can also be connected for alarm acknowledgement. Due to the spatial separation of controller and relay module, safety measures in remote areas (up to 1,200 m) can be implemented with significantly less cabling effort. The operating voltage of the GMA200-RTD is 24 V DC. Power supply is also possible redundantly via two power supplies.