General Description - Mitsubishi Electric FR-A800 Instruction Manual

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GENERAL DESCRIPTION

Features
The safety stop function of the Mitsubishi Electric FR-A800/F800 inverter can be used to prevent the inverter
from supplying rotational energy to motors. Dual input terminals S1 and S2 can be used to cut off the gate-drive
power to the IGBT.
RESET
Emergency
stop button
Safety relay module
/ Safety programmable controller
Warning
 Disconnecting the power to the gate driver by the safety stop function does not isolate electrically
between the inverter and the motor. To avoid an electric shock hazard, disconnect power to the
inverter and verify that the main circuit capacitor voltage is zero (across terminals P and N) before
performing any work on the motor (refer to your inverter's Instruction Manual for discharging time).
So (SO)
SOC
+24V
Fuse
PC
24VDC
S2
S1
SIC
SD
Figure 1 FR-A800/F800 safety stop function diagram
FR-A800/F800
Logic
ASIC
CPU
GENERAL DESCRIPTION
R/L1 S/L2 T/L3
IGBTs
Gate
Gate
Driver
Driver
G G
U V W
M
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