The OPC-115V is a remote mount interface board that lets 115 VAC field wiring drive the inverter's 24 V DC digital inputs, and lets the inverter's transistor outputs switch 115 VAC or 24 V DC loads through relay contacts. It mounts on DIN rail or on a mounting plate.
Best for
- Retrofits where the existing control wiring is 115 VAC line voltage
- Panels that must keep 115 VAC control separate from the drive terminals
- Machines where relay contacts are needed to switch a load from a drive output
Key features
115 VAC to 24 V DC input conversion
8 AC inputs at 115 VAC, 8 mA per channel, each driving a relay coil that presents a 24 V DC input to the inverter.
Relay outputs both sides
4 relay outputs on the user side at 250 VAC 5 A or 24 VDC 5 A per channel, and 8 relay outputs on the inverter side at 24 VDC 20 mA per channel.
LED status per channel
A status LED is provided for each relay: red on the AC side, green on the DC side.
Remote mount
Mounts on DIN rail or on a mounting plate, away from the inverter.
Technical specifications
| Type | OPC-115V |
| Option class | Input/output interface card |
| Compatible series | FRENIC-Mini (C2) |
| User side digital inputs | 8 AC inputs, 115 VAC, 8 mA per channel |
| User side input parameters | Input impedance 6.5 kΩ, minimum ON voltage 96 VAC, maximum OFF voltage 36 VAC, turn ON time 15 ms max, turn OFF time 10 ms max |
| User side digital outputs | 4 relay outputs, 250 VAC 5 A or 24 VDC 5 A per channel |
| Inverter side digital inputs | 4 DC inputs, 24 VDC, 12 mA per channel |
| Inverter side input parameters | Input impedance 2.88 kΩ, minimum ON voltage 18 VDC, maximum OFF voltage 1.2 VDC, turn ON time 10 ms max, turn OFF time 5 ms max |
| Inverter side digital outputs | 8 relay outputs, 24 VDC 20 mA per channel |
| Operating and storage temperature | 0 to 60°C operating, −20 to 80°C storage |
| Operating humidity | 10% to 90% RH (no condensation) |
| Dimensions | 145 mm x 92 mm |
| Mounting | DIN rail or mounting plate |
| Country of origin | India |
Specifications on this page are taken from the OPC-115V instruction sheet, QS-OPC-115-1010 Ver. 1.00, and from the Fuji Electric Corp. of America FRENIC-Mini (C2) product listing. Verified September 2026.
Documentation
Frequently asked questions
- What does the OPC-115V do?
- It converts 8 channels of 115 VAC user wiring into 24 V DC digital inputs for the inverter, and provides relay outputs on both the user side and the inverter side.
- What voltage are the OPC-115V inputs?
- The user side takes 115 VAC at 8 mA per channel, with a minimum ON voltage of 96 VAC and a maximum OFF voltage of 36 VAC. The inverter side takes 24 V DC at 12 mA per channel.
- What can the OPC-115V relay outputs switch?
- User side: 250 VAC 5 A or 24 VDC 5 A per channel across 4 relays. Inverter side: 24 VDC 20 mA per channel across 8 relays.
- How is the OPC-115V mounted?
- On DIN rail or on a mounting plate. The board measures 145 mm x 92 mm.
- Accessory Item:
- I/O Card
- Accessory Type:
- I/O Card
- Compatible Series:
- FRENIC-Mini (C2)
