SmartFan^® Nimbus-HP

REMOTE TRANSDUCER & FIXED SPEED SETTINGS

Nimbus-HP AC Motor Speed Control for Motors, Fans & Pumps - Remote Transducer

USING REMOTE POWERED TRANSDUCER MODE

When used in the remote transducer mode, the Nimbus-HP can power and control from most 0-5VDC transducers (humidity, pressure, flow etc.) with a maximum supply current of 5mA. To set the Nimbus to remote transducer mode, see table 2.

Setting Control Parameters (switch #3, 4, 5, 6)
To customize the control slope to your transducer, use DIP switches 3 & 4 to set idle or minimum speed voltage, use switches 5 & 6 to set full speed control voltage. See table 6 and figure 4 for details.

Fan On / Fan Off Feature (switch #1)
To turn fans off automatically when transducer voltage drops below VDC (min), set switch #1 to the ON position. To keep fans running at idle speed below the VDC (min), set switch #1 to the OFF position. See figure 4.

Setting Idle Speed (switch #2)
The idle speed is the minimum voltage (as a % of supply voltage) supplied to the fan. When used in the remote transducer mode, the Nimbus-HP can be set for idle speeds of 30% by setting DIP switch #2 to OFF or 60% by setting DIP switch #2 to ON. Other idle speeds can be supplied, contact customer service for details. See figure 4.

Nimbus-HP AC Motor Speed Control for Motors, Fans and Pumps - Fixed Speed Settings

USING FIXED SPEED MODE

Automatic speed control can be overridden in the fixed speed mode. To set the Nimbus-HP to fixed speed mode, see table 2. In the fixed speed mode, the user can select motor voltages from 27% to 99% (in 1% or 2% increments) of supply voltage using DIP switches 1 through 6, see table 7 below.