Mitsubishi Electric FR-A842-07700, Инструкция по эксплуатации

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Control circuit
54
INSTALLATION AND WIRING
2.6.8
Safety stop function
 Function description
The terminals related to the safety stop function are shown below.
∗1 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 shorting wires, and then connect to the safety relay module as shown in the connection diagram.
∗2 At an internal safety circuit failure, the operation panel displays one of the faults shown on the next page.
NOTE
• Use terminal So (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.
 Connection diagram
To prevent restart at fault occurrence, connect terminals So (SO) and SOC to the reset button, which are the feedback input
terminals of the safety relay module.
Terminal
symbol
Terminal function description
S1
∗1
For input of the safety stop channel 1.
Between S1 and SIC, S2 and SIC
Open: In safety stop mode
Short: Other than the safety stop mode.
S2
∗1
For input of the safety stop channel 2.
SIC
∗1
Common terminal for terminals S1 and S2.
So (SO)
Outputs when an alarm or failure is detected.
The signal is output when 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 (SO)) common
R/L1 S/L2 T/L3
U V W
M
So (SO)
SOC
S1
S2
G G
ASIC
Inverter
SIC
SD
Logic
PC
CPU
+24 V
RESET
Emergency
stop button
Safety relay module
/ Safety programmable controller
Gate
Driver
IGBTs
Fuse
Gate
Driver