Control circuit
51
2
2.7.6
When supplying 24 V external power to the
control circuit
Connect a 24 V external power supply across ter24 and SD. Connecting a 24 V external power supply enables I/O
terminal ON/OFF operation, operation panel displays, control functions, and communication during communication operation
even during power-OFF of converter unit's main circuit power supply. When the main circuit power supply is turned ON, the
power supply changes from the 24 V external power supply to the main circuit power supply.
Specification of the applied 24 V external power supply
Commercially available products (as of October 2020)
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.
NOTE
• When the 24 V external power is supplied while the main circuit power supply is OFF, the converter unit 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 converter unit, then the power supply changes to the main circuit power supply.
Confirming the 24 V external power supply input
• During the 24 V external power supply operation, the ALARM lamp of the accessory cover blinks. When the operation
panel is installed, "EV" blinks.
• During the 24 V external power supply operation, the 24 V external power supply operation signal (EV) is output. To use the
EV signal, set "68 (positive logic) or 168 (negative logic)" in one of
Pr.190 to Pr.195 (Output terminal function selection)
to assign function to an output terminal.
Item
Rate Specification
Input voltage
23 to 25.5 VDC
Input current
1.4 A or lower
Model
Product overview
Manufacturer
S8FSG05024C
Specifications: Capacity 50 W, output voltage 24 VDC, output current 2.2 A
Installation method: Direct installation, screw type terminal block with cover
Input: Single-phase 100 to 240 VAC
OMRON Corporation
S8VK-S06024
Specifications: Capacity 60 W, output voltage 24 VDC, output current 2.5 A
Installation method: DIN rail, push-in (spring) type terminal block
Input: Single-phase 100 to 240 VAC
S8VKWA24024
Specifications: Capacity 240 W, output voltage 24 VDC, output current 10 A
Installation method: DIN rail, push-in (spring) type terminal block
Input: Three-phase 200 to 240 VAC
POWER ALARM
Blinking
Blinking
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