With the MODEX 4 x digital out Ex i/8 x Ex i digital in, it is possible to control 4 Ex i valves while simultaneously importing NAMUR limit switches via 8 digital intrinsically safe inputs. The statuses of the control and end position signals are displayed using LEDs. The output on the short-circuit proof outputs will be switched off automatically by temperature monitoring in the event of a shortcircuit (short-circuit proof). The controlled actuators can be switched off by an emergency stop via a second power supply connection on the module on terminals U- and U+. The module is connected to the process control system via the PROFIBUS-DP. Coding rotary switches are available for addressing the module. Diagnostics data indicating the status of the outputs with respect to a disconnection or short-circuit can also be transmitted in addition to the user data. This is also displayed on the module itself using LEDs.
| Protection class | Module: IP 66 EN/IEC 60529 Terminals: IP 20 EN/IEC 60529 Terminals with cover: IP 30 EN/IEC 60529 |
|---|---|
| Structure | Flameproof, clip-on enclosure for TH 35 rail |
| Dimensions | see data sheet |
| Material | High-quality thermoplastic |
| Storage temperature | -40 °C to +60 °C |
| Weight | 2.1 kg |
| Display | LEDs on front panel Status: ON, BF, SF, U2 Inputs: 8 x double LED LED yellow, damped; LED red, open circuit/short circuit Outputs: 4 x double LED LED yellow, active; LED red, short circuit |
| Voltage | Supply voltage (L+, L-): DC 24 V (20 to 30 V) |
| Output power | 6.5 W |
| Power dissipation | 4.5 W (Module) |
