Mitsubishi Electric 800 Series, Installation Manualline

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WIRING
2.5 Safety stop function
2.5.1 Function description
The terminals related to the safety stop function are shown below.
*1
In the initial status, terminals S1 and PC and terminals S2 and PC are respectively shorted with shorting wires. To use the safety stop
function, remove all the shorting wires, and then connect to the safety relay module as shown in the connection diagram.
*2
When any fault listed on the next page occurs in the internal safety circuit, the corresponding indication is shown on the operation
panel
.
2.5.2 Connection diagram
To prevent automatic restart after a fault occurrence, connect the reset button of a safety relay module or a safety pro-
grammable controller across the terminals SO and SOC. The reset button acts as the feedback input for the safety relay
module or the safety programmable controller.
*1
To avoid an electric shock hazard, install a magnetic contactor (MC) at the input side of the inverter.
Terminal symbol Terminal function description
S1
*1 Input terminal as the safety stop channel 1.
Status of both the circuit between terminals S1 and PC
and the circuit between terminals S2 and PC
Open: Safety stop is activated.
Shorted: Safety stop is not activated
S2
*1
Input terminal as the safety stop channel 2.
PC
*1
Common terminal for S1 and S2.
SO
Output terminal used for fault detection and fault
indication display.
The terminal is ON (conducted) while no internal safety
circuit failure
*2
exists.
OFF: Internal safety circuit failure
*2
ON: No internal safety circuit failure
*2
SOC Open collector output (terminal SO) common
CAUTION
l
Use the terminal SO to output a fault and to prevent restarting of the inverter. The signal cannot be used as safety stop input signal to
other devices.
PC
R/L1 S/L2 T/L3
U V W
SO
SOC
S2
S1
M
MC
RESET
Emergency
stop button
Safety relay module/
Safety programmable controller
FR-E800(-E)
Logic
CPU
Fuse
+24V
CPU
Gate
Driver
Gate
Driver
IGBTs