Safety Stop Function - Mitsubishi Electric FR-A820-00046 Instruction Manual
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Also See for FR-A820-00046:
- Instruction manual (1218 pages) ,
- Instruction manual (36 pages) ,
- Instruction manual (856 pages)
Table of Contents
Control circuit
2.6.7
Safety stop function
Function description
The terminals related to the safety stop function are shown below.
Terminal
symbol
S1
S2
SIC
SO
SOC
Tab. 2-21:
In the initial status, terminals S1 and PC, S2 and PC, and SIC and SD are respectively shorted with
shorting wires. To use the safety stop function, remove all the shortening wires, and then connect
to the safety relay module as shown in the following connection diagram.
At an internal safety circuit failure, the operation panel displays one of the faults shown on page
2-56.
NOTE
Use the terminal SO to output a fault and to prevent restarting of the inverter. The signal cannot
be used as safety stop input terminal to other devices.
2 - 54
Terminal function description
For input of the safety stop channel 1.
For input of the safety stop channel 2.
Common terminal for S1 and S2.
Outputs when an alarm or failure is detected.
The signal is output when no internal safety circuit failure
exists.
Open collector output (terminal SO) common
Safety stop signal
Installation and wiring
Between S1 and SIC, S2 and SIC
Open: In safety stop mode
Short: Other than the safety stop mode.
OFF:
Internal safety circuit failure
ON:
No internal safety circuit failure
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Troubleshooting
