When Supplying 24 V External Power To The Control Circuit - Mitsubishi Electric FR-F820-04750 Instruction Manual

Installation and wiring
2.6.6

When supplying 24 V external power to the control circuit

Connect the 24 V external power supply across terminals +24 and SD. The 24 V external power supply
enables I/O terminal ON/OFF operation, operation panel displays, control functions, and communi-
cation during communication operation even at power-OFF of inverter's main circuit power supply.
When the main circuit power supply is turned ON, the power supply source changes from the 24 V ex-
ternal power supply to the main circuit power supply.
Specification of the applicable 24 V external power supply
Item
Input voltage
Input current
Tab. 2-24:
Model
S8JX-N05024C
Specifications: Capacity 50 W, output voltage (DC) 24 V, output current 2.1 A
Installation method: Front installation with cover
or
S8VS-06024
Specifications: Capacity 60 W, output voltage (DC) 24 V, output current 2.5 A
Installation method: DIN rail installation
Tab. 2-25:
For the latest information about OMRON power supply, contact OMRON corporation.
Starting and stopping the 24 V external power supply operation
● Supplying 24 V external power 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.
NOTES When the 24 V external power is supplied while the main circuit power supply is OFF, the inverter
operation is disabled.
In the initial setting, when the main 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. (The reset can be disabled using Pr. 30, refer to page 5-532.)
FR-F800
Specification of the applicable 24 V external power supply
Commercially available products (as of February 2015)
Rated specification
23 to 25.5 V DC
1.4 A or less
Control circuit
Manufacturer
OMRON Corporation
2 - 57