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コントローラー ABB ACS320 seriesのPDF 補足マニュアルをオンラインで閲覧またはダウンロードできます。ABB ACS320 series 16 ページ。 Variable frequency drives in renewaire ventilators
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OPERATION

INITIAL STARTUP

CAUTION

230V Power Supplies

ERVs rated for 208-230VAC

power supplies are shipped with

VFD parameters set for 208V

operation. For 230VAC operation,

change the following Parameters:

- 2003 MAX CURRENT Change to

no more than 125% of motor

FLA for 230V, as listed on the

unit nameplate.

- 9905 MOTOR NOM VOLT

Change from 208V to 230V.

- 9906 MOTOR NOM CURR

Change to match the motor

FLA for 230V, as listed on the

unit nameplate.

RENEWAIRE.COM

ABB VFD SUPPLEMENTAL MANUAL

ABB VARIABLE FREQUENCY DRIVES

TO START ERV

1. Turn off power to the ERV at its Disconnect Switch.

Make sure the ERV is wired to provide an ON signal. (See Control Wiring Schematics later in this

Manual.) You may need to install a temporary jumper at the ERV or VFD low-voltage terminal strip.

VFDs are set at the factory to respond to the keypad. If an external controller providing an analog

input is connected to the VFD, you may want to temporarily disconnect it.

Close ERV doors and main cover for the E-box; leave keypads accessible.

2. Turn on power to the ERV at its Disconnect Switch.

Wait for keypad display to appear.

3. For each VFD:

Press the HAND button on the keypad. Motor should start running at about 425 RPM.

Use the UP/DOWN buttons to set motor speed as desired. Conﬁ rm the motor amps are no greater

than the motor FLA as listed on the unit nameplate.

4. To transfer control of the VFD to a control system:

Press the OFF button on the keypad. Motor should stop running.

Change the VFD parameters as required for the speciﬁ c controls system (see "Control Connections"

and "VFD Parameters", below, for examples; see also the ABB Manuals.)

Press the AUTO switch on the keypad.

MOTOR PROTECTION BY THE VFD(s)

Each VFD in this unit protects one motor against overload. It is critical that the VFD MAX CURRENT be

properly set at no more than 125% of the Full Load Amps (FLA) of the motor (115% of FLA if motor service

factor is less than 1.15 and the motor is not otherwise protected). The following Parameters must be set

correctly and individually for each VFD to match the characteristics of the motor attached to it:

2003

MAX CURRENT

3007

MOTOR LOAD CURVE %

9905

MOTOR NOM VOLT

9906

MOTOR NOM CURR

9909

MOTOR NOM POWER

These parameters are set at RenewAire to match the motor controlled by the VFD. In most cases they

should not be changed.

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