General Description - Mitsubishi Electric FR-D700 Instruction Manual

1. General description

Features
Mitsubishi FR-D700 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 safety stop function meets the following directives and categories.
EN954-1 Category 3
IEC60204-1 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.
+24V
S2
+24V
S1
CPU
SC
Fig.1 FR-D700 safety stop function diagram
WARNING
WARNING
1
Input power
FR-D700
G G
Gate Gate
Driver Driver
IGBTs
M