Example Of Safety System Configuration - Mitsubishi Electric FR-A800 Safety Stop Function Instruction Manual

3
EXAMPLE OF SAFETY SYSTEM
CONFIGURATION
●FR-A800/F800 configuration example
Emergency
stop button
+24V X0 X1
COM0
Internal
24V
Safety
DC
Circuit
24G
S a f e t y r e l a y module
M E L S E C Q S 9 0 S R 2 S N-Q
 If the control logic is SINK logic, the common terminal is terminal SD.
NOTE
• When starting up the system's operation, press the RESET switch to reset the safety stop function first,
then turn ON the START switch to run the motor.
• In the above configuration, after reset of emergency stop button, drive will be in safe-state until RESET
switch is pressed.
CAUTION
 To prevent restart in case of recovering from input power loss of drive, 3-wired connection for
START/STOP control is recommended. In case of 2-wire connection and using latching type switch
to short between STF and SD/PC for starting, ensure the compliance with safety requirement for the
restarting when the drive recover from input power loss.
SO
SOC
RESET
START
STF
STOP
STOP
S 2
24V
DC
XS0 XS1 Z00 Z10 Z20
COM1
S 1
K1
SIC
K 2
SD
Z01 Z11 Z21
PC *1
Fig.3 Safety system example with FR-A800/F800

EXAMPLE OF SAFETY SYSTEM CONFIGURATION

Logic
CPU ASIC
+24V
Fuse
FR-A800/F800
R/L1 S/L2 T/L3
Gate Gate
Drive r Drive r
IGBTs
G G
U V W
M
7