Key Features
- 16 isolated digital outputs: SIMATIC S7-400 SM 422 digital output module with 16 DO.
- 120/230 V AC load voltage: Rated value (AC): 230 V; 120/230 V AC.
- 2 A output current: Output current for signal "1" rated value: 2 A.
- Short-circuit protection: Short-circuit protection: Yes; clocked electronically.
- Potential separation: Potential separation digital outputs between the channels and backplane bus: Yes.
- Diagnostics indication LEDs: Internal fault INTF (red): Yes; fuse blown. External fault EXTF (red): Yes; missing load voltage.
Applications
- Digital output switching: Switching 16 digital outputs in a SIMATIC S7-400 system.
- Load control from AC outputs: Controlling loads with 120/230 V AC output switching.
Technical Summary
| Product type | SIMATIC S7-400, digital output SM 422 |
|---|---|
| Number of digital outputs | 16 |
| Load voltage L1 rated value (AC) | 230 V; 120/230 V AC |
| Load voltage L1 permissible range, lower limit (AC) | 79 V |
| Load voltage L1 permissible range, upper limit (AC) | 264 V |
| Load voltage L1 permissible frequency range, lower limit | 47 Hz |
| Load voltage L1 permissible frequency range, upper limit | 63 Hz |
| Output current for signal "1" rated value | 2 A |
| Output current for signal "1" permissible range, min. | 10 mA |
| Output current for signal "1" permissible range, max. | 2 A |
| Short-circuit protection | Yes; Clocked electronically: Following a short-circuit, reclosing under a full load cannot be ensured. Countermeasures: change the signal at the output or interrupt the load voltage of the module. Briefly disconnect the load from the output. |
| Response time, max. | 100 ms |
Frequently Asked Questions
What is the Siemens 6ES7422-1FH00-0AA0?
It is a SIMATIC S7-400 digital output SM 422 module with 16 isolated digital outputs.
What load voltage does this SM 422 output module use?
Load voltage L1 rated value (AC): 230 V; 120/230 V AC.
What is the output current of 6ES7422-1FH00-0AA0?
Output current for signal "1" rated value: 2 A.
Does the module provide output protection and diagnostics?
Yes. It has short-circuit protection and diagnostics indication LEDs for internal fault INTF and external fault EXTF.
