Filter
Top Products
Control circuit
46
INSTALLATION AND WIRING
Connection diagram
To prevent restart at fault occurrence, connect terminals SO and SOC to the reset button, which are the feedback input
terminals of the safety relay module.
Safety stop function operation
At an internal safety circuit failure, the operation panel displays one of the fault shown in the following table.
SA is displayed when both of the S1 and S2 signals are in open status and no internal safety circuit failure exists.
ON: Transistor used for an open collector output is conducted.
OFF: Transistor used for an open collector output is not conducted.
Internal safety circuit failure
At an internal safety circuit failure, the terminal SO turns OFF.
The following faults can cause the internal safety circuit failure (terminal SO-OFF).
For more details, refer to the Safety Stop Function Instruction Manual (BCN-A23228-001).
Find a PDF copy of this manual in the CD-ROM enclosed with the product.
It is also can be downloaded from the Mitsubishi Electric FA Global Website.
http://www.mitsubishielectric.co.jp/fa/
Input
power
Input signal Internal safety
circuit failure
Output signal
Inverter running status
S1-SIC S2-SIC SO
OFF - - - OFF Output shutoff (Safe state)
ON
Shorted Shorted
Without ON Drive enabled
With OFF Output shutoff (Safe state)
Open Open
Without
ON Output shutoff (Safe state)
With OFF Output shutoff (Safe state)
Shorted Open N/A OFF Output shutoff (Safe state)
Open Shorted N/A OFF Output shutoff (Safe state)
N/A denotes a condition where circuit fault does not apply.
R/L1 S/L2 T/L3
U
V
W
M
SO
SOC
S1
S2
G G
ASIC
FR-A800
SIC
SD
Logic
PC
CPU
+24V
RESET
Emergency
stop button
Safety relay module
/ Safety programmable controller
Gate
Driver
IGBTs
Fuse
Gate
Driver
Fault record
Operation panel
indication
Option fault E.OPT
Communication option fault E.OP1
Parameter storage device fault E.PE
Retry count excess E.RET
Parameter storage device fault E.PE2
Operation panel power supply short circuit
RS-485 terminals power supply short circuit
E.CTE
24 VDC power fault E.P24
Safety circuit fault E.SAF
Overspeed occurrence E.OS
Speed deviation excess detection E.OSD
Signal loss detection E.ECT
Excessive position fault E.OD
Brake sequence fault E.MB1 to E.MB7
Encoder phase fault E.EP
CPU fault
E.CPU
E.5 to E.7
Internal circuit fault E.13
Fault record
Operation panel
indication