When Supplying 24 V External Power To The Control Circuit - Mitsubishi Electric FR-A872-E Instruction Manual

2.6.7 When supplying 24 V external power to the control
circuit
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
Commercially available products (as of April 2019)
Model
Specifications: Capacity 50 W, output voltage 24 VDC, output
current 2.2 A
*1
Installation method: Direct installation, screw type terminal block
S8FS-G05024C
with cover
Input: Single-phase 100 to 240 VAC
Specifications: Capacity 60 W, output voltage 24 VDC, output
current 2.5 A
*1
S8VK-S06024
Installation method: DIN rail, push-in (spring) type terminal block
Input: Single-phase 100 to 240 VAC
Specifications: Capacity 240 W, output voltage 24 VDC, output
current 10 A
*1
S8VK-WA24024
Installation method: DIN rail, push-in (spring) type terminal block
Input: Three-phase 200 to 240 VAC
*1 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 24 V external power supply operation and enables the normal operation.
NOTE
• 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.)
 Confirming the 24 V external power supply input
• During 24 V external power supply operation, "EV" blinks on the operation panel. The alarm LED also blinks. Thus, the 24
V external power supply operation can be confirmed even when the operation panel is removed.
Blinking
• During 24 V external power supply operation, the 24 V external power supply operation (EV) signal is output. To use the
EV signal, set "68 (positive logic) or 168 (negative logic)" in one of Pr.190 to Pr.196 (Output terminal function selection)
to assign function to an output terminal.
Rated specification
23 to 25.5 VDC
1.4 A or less
Product overview
Blinking
POWER ALARM
Manufacturer
OMRON Corporation
2. INSTALLATION AND WIRING
2.6 Control circuit
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