Single Stage Variable DC Controller

Model: FC-1T-1VDC

Single Stage Variable DC Controller

Model: FC-1T-1VDC
Easy to use with 0 to 10 VDC output

Controlling variable frequency drives just got easier. The FC-1T-1VDC has a 0 to 10 VDC signal output and a disconnect relay that allows you to easily and effectively control variable frequency drives.

The FC-1T-1VDC has many other applications including controlling expansion controls, modulating valves, or other equipment requiring a DC signal. All this from one easy-to-use control!

How it works

The display shows temperatures, signal output, programming information, and alarm codes. The indicator lights show which settings you are editing. The knob allows you to easily move between and adjust settings.

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SKU: FC-1T-1VDC Category:
  • Automatic temperature-based control, range: 32 to 99°F (0 to 37°C)
  • One variable 0 to 10 VDC output
  • One disconnect relay
  • Alarm relay (for external alarm system or siren)
  • Three-second full-power-turn-on for minimizing fan ice-up
  • Three-character LED display
  • Status and programming LEDs
  • Alarm code display
  • Customizable alarm settings
  • Power-failure settings protection
  • Six-foot temperature sensor, extendable to 500 feet
  • NEMA 4X enclosure (Corrosion-resistant, water-resistant, and fire-retardant)
  • cCSAus approval
  • CE certification
  • Limited warranty

When the 0 to 10 VDC signal output is at 0, the disconnect relay sends a start/stop signal to the equipment you are controlling with the variable output. The relay is not for controlling fans, heaters, or other equipment.

  • Incoming power
    120/230 VAC, 50/60 Hz
  • Disconnect relay
    5 A at 250 VAC, 5 A at 30 VDC, resistive load
    2 A at 250 VAC, 2 A at 30 VDC, inductive load
  • Variable output
    0 to 10 VDC, 2K Ω load
  • Alarm relay
    0.4 A at 125 VAC, 2.0 A at 30 VDC, resistive load
    0.2 A at 125 VAC, 1.0 A at 30 VDC, inductive load

FanDRIVE (1x14 FLA)

FanDRIVEs expand the capacity of your control system by taking the 0 to 10 VDC signal from the control and adjusting fan speed.

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FanDRIVE (2x7 FLA)

FanDRIVEs expand the capacity of your control system by taking the 0 to 10 VDC signal from the control and adjusting fan speed.

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Temperature Sensors

Additional temperature sensors allow you to use 4-zone temperature averaging. Probes are available several lengths and can be extended up to 500 feet using extension cable.

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General

Does this replace the SSV-DC?

Yes, it is a direct replacement for the SSV-DC.

How many VFDs can it control?

The output rating is 2k Ω of load. Each device or wire attached to the output adds to the load. The total number of VFDs it can control depends on the VFDs and well as the length of wiring connecting them.

Does it have a manual override?

There is a software manual override. See Manual mode in the user manual for information about how to use it.

Can I use the disconnect relay to control a fan?

No. The disconnect relay is designed to send a stop signal to the 0 to 10 VDC equipment it is controlling when the variable output goes to 0 V.

Does a low or high temperature alarm affect the output?

No. If there is a low or high temperature alarm the, alarm contacts will change state but the variable output will continue to operate according to the programmed settings.

How big is the control?

The enclosure is 4.75 x 7.80 x 3.75 in. (12 x 15.6 x 9.5 cm) The switch and knob add an additional 0.75 in. (1.9 cm) to the depth.

Installation

Where do I connect the disconnect relay?

Connect the disconnect relay to the Start/Stop connections on your equipment. See Connect equipment in the user manual for more information.

Can I have the fan come on at a voltage higher than 0 V?

Yes. The idle speed is roughly 10 times the voltage at which the fan will come on. For example, if you have your idle speed set to 40 percent, the fan will come on at 4 V; if you have it at 80 the fan will come on at 8 V.

Troubleshooting

Why does my equipment still run when the output is at 0 percent?

Some equipment may still operate at a very low value at 0 percent. Use the disconnect relay to fully cut off the power to the equipment and ensure that 0 percent means fully off. See Connect Equipment in the user manual for more information.

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