Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 82

 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.
RESET
Emergency
stop button
Safety relay module /
Safety programmable controller
 Safety stop function operation
Internal
Input terminal
Input
safety
power
circuit status
OFF — —
Normal ON
Normal ON
Normal OFF
Normal OFF
ON
Fault ON
Fault ON
Fault OFF
Fault OFF
*1 The terminal ON state shows that the terminal is conducted (the line is closed), and the OFF state shows that the terminal is not conducted (the
line is open).
*2 When not using the safety stop function, short across terminals S1 and PC, S2 and PC, and SIC and SD to use the inverter. (In the initial status,
terminals S1 and PC, S2 and PC, and SIC and SD are respectively shorted with shorting wires.)
*3 If any of the protective functions shown in the following table is activated, terminal So (SO) and the SAFE signal turn OFF.
Fault type
Option fault
Communication option fault
Parameter storage device fault
Retry count excess
Parameter storage device fault
Operation panel power supply
short circuit/RS-485 terminals
power supply short circuit
24 VDC power fault
Safety circuit fault
Overspeed occurrence
So (SO)
SOC
+24V
Fuse
PC
24 VDC
S2
S1
SIC
SD
Output
*1*2
terminal signal
S1 S2 So (SO)
— OFF OFF
*3
ON OFF
ON
*4
OFF
OFF OFF
*4
ON
OFF OFF
*3
OFF
ON ON
ON OFF OFF
OFF OFF OFF
ON OFF OFF
OFF OFF OFF
Operation panel indication
E.OPT
E.OP1 to E.OP3
E.PE
E.RET
E.PE2
E.CTE
E.P24
E.SAF
E.OS
Inverter
Logic
ASIC
CPU
Output
*8*9*10
Inverter operating status
SAFE
Output shutoff (Safe state) Not displayed Not displayed
Operation enabled
*4
Output shutoff (Safe state) Displayed
*4
Output shutoff (Safe state) Displayed
*3
Output shutoff (Safe state) Not displayed Displayed
Output shutoff (Safe state) Displayed
Output shutoff (Safe state) Displayed
Output shutoff (Safe state) Displayed
Output shutoff (Safe state) Displayed
Fault type
Speed deviation excess detection
Signal loss detection
Excessive position fault
Brake sequence fault
CPU fault
Encoder phase fault
Magnetic pole position unknown
Internal circuit fault
R/L1 S/L2 T/L3
IGBTs
Gate
Gate
Driver
Driver
G G
U V W
M
Operation panel indication
*6 *7
E.SAF SA
Not displayed Not displayed
Displayed
Displayed
Not
*5
displayed
Displayed
Displayed
Displayed
Operation panel indication
E.OSD
E.ECT
E.OD
E.MB1 to E.MB7
E.CPU
E.5 to E.7
E.EP
E.MP
E.13
2. INSTALLATION AND WIRING
2.6 Control circuit
1
2
3
4
5
6
7
8
9
10
81