The 750-666/000-004 Module is equipped with two power outputs (O1 … O2) and four clock sensitive inputs (I1 … I4). The sensors can be supplied directly with 24 V, or fed by two differently clocked outputs (T1 … T2).
The inputs connect potential-free, emergency-off switches with contacts, safety interlock switches, mode selectors, as well as both safety sensors and semiconductor outputs (e.g., light barriers, PLC outputs). The power outputs switch both DC13 resistive and inductive loads.
Power output O1 can be operated in high-side switching mode, while power output O2 can be used in high-side or low-side switching mode. Both power outputs are single-channel and can be combined to a two-channel output.
The module monitors short circuits, cross circuits and 24 V power supply from separate sources. Both the monitoring and additional safety-relevant parameters (e.g., operating modes, switching off test pulses, discrepancy or filter times) can be configured via WAGO-I/O-CHECK.
This configuration tool can be conveniently integrated into engineering systems supporting TCI (Tool Calling Interface) with CC2 or CC3.
When exchanging modules, parameters are automatically downloaded into the control unit via PROFIsafe-compatible iPar server – depending on settings. The PROFIsafe address can be set using the DIP switch located on the side of the module, or via WAGO-I/O-CHECK.
The module supports both PROFIsafe V2.4 (PROFIBUS, PROFINET) and V2.6 (PROFINET) protocols.
Field and system levels are electrically isolated.
Individual safety modules can be arranged in any combination when configuring the fieldbus node.
If, for example, the cable length of the 24 V supply is greater than 3 m, WAGO's 750-626 Filter Module or an appropriate external filter must be used for the 24 V power supply to protect the module against surge and burst (per IEC 61000-6-7 and marine applications).
Additional information can be found in the product manual (available in German and English).
The 750-666/000-004 Module has been evaluated by UL in compliance with UL/CSA 61010-1, UL/CSA 61010-2-201 and UL 121201, CSA-C22.2 No. 213.
The functional safety evaluation was performed by TÜV Rheinland in compliance with the specified standards.