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1. General description
Features
Mitsubishi FR-D700-SC safety stop function prevents a drive from supplying rotational energy to motors.
Dual safety channels 'S1' and 'S2' cut off the gate-drive power for IGBT to turn off.
Internal
Safety
Circuit
Safety relay module
The safety stop function doesn't isolate electrically between drive and motor. To avoid an electric shock
hazard, disconnect power to the drive and verify that the voltage is zero before performing any work on the
motor (refer to your drive's User Manual for discharging time).
Directives
Mitsubishi FR-D700-SC safety stop function meets the following directives and categories.
ISO13849-1:2008 Category 3/PLd
IEC62061:2005 / IEC61800-5-2:2007 / IEC61508 SIL2
IEC60204-1:2006 / IEC61800-5-2:2007 Stop category 0
The misuse of safety function leads to personal injury or death, property damage, or economic loss.
To ensure that the system complies fully with requirement of safety, make a system-level risk assessment.
Mitsubishi Electric Co. cannot assume responsibility for any system to comply with safety directive.
S1
S2
+24V
CPU
SC
Fig.1 FR-D700-SC safety stop function diagram
WARNING
WARNING
FR-D700-SC
G
G
Gate
Gate
Driver
Driver
1
Input power
IGBTs
M
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