Connecting The 24 V External Power Supply - Mitsubishi Electric 800 Series Instruction Manual

3

CONNECTING THE 24 V EXTERNAL POWER SUPPLY

Connect the 24 V external power supply across terminals +24 and SD to turn the I/O terminal ON/OFF operation, keep the
operation panel ON, and carry out communication during communication operation even at power-OFF state of inverter's main
circuit power supply. When the main circuit power supply is turned ON, the power supply is switched from the 24 V external
power supply to the main circuit power supply.
 Specification of the applied 24 V external power supply
Item
Input voltage
Input current
 Starting and stopping the 24 V external power supply operation
• Supplying 24 V external power across terminals +24 and SD while the main circuit power is OFF starts the 24 V external
power supply operation. Likewise, turning OFF the main circuit power while supplying 24 V external power starts the 24 V
external power supply operation.
• Turning ON the main circuit power stops the 24 V external power supply operation and enables the normal operation.
NOTE
• During the 24 V external power supply operation, the inverter operation is disabled.
• When the main circuit power supply is turned ON during the 24 V external power supply operation, a reset is performed in
the inverter, then the power supply changes to the main circuit power supply.
22
CONNECTING THE 24 V EXTERNAL POWER SUPPLY
Rated specification
23.5 to 26.5 VDC
0.7 A or less