Greenheck Fan 90, HRE-20, 55, 45 manual Variable Frequency Drives for Energy Recovery Wheel

Page 21

optional accessories

Factory Setpoints - MODULATING CONTROL (0-10 VDC) FOR FAN SPEED

Variable frequency drives (VFD) for the blowers are factory setup to receive a 0-10 VDC signal wired in the field (refer to previous page for terminal locations).. Most of the setpoints in the VFDs are factory defaults.. There are a few, though, that are changed at Greenheck and are shown in the tables below.. To gain access to change setpoints on the E7 drive, parameter A1-01 needs to be set at “2”.. To gain access to change setpoints on the GPD- 305 drive, parameter n01 needs to be set at “1”.. To prevent access on either drive, change the parameter to “0”..

Yaskawa E7 Drive

S1 to SN contact for On/Off

A1 (0-10VDC) referenced to AC (Can use +15 VDC from +V)

 

Parameter

Setting

A1-01

Access Level

2

 

 

 

C6-02

Carrier frequency

2

d2-02

Ref Lower Limit

50%

 

 

 

E2-01

Motor Rated FLA

Motor FLA

H3-03

Terminal A1 Bias

50%

 

 

 

O2-03

User Defaults

1

A1-01

Access Level

0

 

 

 

Yaskawa GPD-305 Drive

S1 to SC contact for On/Off

FR (0-10VDC) referenced to FC (Can use +12 VDC from FS)

 

Parameter

Setting

n01

Access Level

1

 

 

 

n31

Ref Lower Limit

50%

n32

Motor Rated FLA

Motor FLA

 

 

 

n40

Multi-Function output (MA,MB,MC)

0

n42

Analog Freq.. Reference Bias

50%

 

 

 

n46

Carrier Frequency

2

n01

Access Level

0

 

 

 

Factory Setpoints - MULTI-SPEED CONTROL (1/3 OR 1/2 SPEED REDUCTION) FOR FAN SPEED

Yaskawa E7 Drive

S1 to SN contact for On/Off

 

Parameter

Setting

 

 

 

A1-01

Access Level

2

b1-01

(Frequency) Reference Source

0

 

 

 

C6-02

Carrier frequency

2

d1-01

Frequency Reference 1

60

 

 

 

d1-02

Frequency Reference 2

40

d1-03

Frequency Reference 3

30

 

 

 

d1-04

Frequency Reference 4

60

 

 

 

E2-01

Motor Rated FLA

Motor FLA

 

 

 

O2-03

User Defaults

1

 

 

 

A1-01

Access Level

0

 

 

 

Variable Frequency Drives for

Energy Recovery Wheel

Yaskawa GPD-305 Drive

S1 to SC contact for On/Off

 

Parameter

 

Setting

 

 

 

 

n01

Access Level

 

1

n03

Reference Selection

1

 

 

 

n21

Frequency Reference 1

60Hz

n22

Frequency Reference 2

40Hz

 

 

 

n23

Frequency Reference 3

30Hz

 

 

 

n24

Frequency Reference 4

60Hz

 

 

 

n32

Motor Rated FLA

Motor FLA

 

 

 

 

n38*

Multi-function Input Sel 4

(Term S4)

6

 

 

 

 

n39*

Multi-function Input Sel 5

(Term S5)

7

 

 

 

n40

Multi-Function output (MA,MB,MC)

0

 

 

 

n46

Carrier Frequency

2

 

 

 

 

n01

Access Level

 

0

*Parameter n39 must be set to 7 before n38 can be set to 6 (the drive does not allow these parameters to be the same number, n39 default is 6)

Factory installed VFD for the energy recovery wheel are programmed at the factory per the settings shown below.. Refer to the instruction manual that ships with the unit when making adjustments.. A copy of the manual can be found online at www..drives..com.. For technical support, contact Yaskawa direct at 1-800-927-5292..

Yaskawa GPD-305 Drive

 

Parameter

 

Setting

 

 

 

 

 

n01

Access Level

1

 

n30

Ref Upper Limit

100% or 66%*

 

 

 

 

 

n32

Motor Rated FLA

Motor FLA

 

 

 

 

 

n33

Elect Thermal Overload

1

 

 

 

 

 

 

n36

Multi-Function input

(terminal S2)

10

 

 

 

 

 

 

n40

Multi-Function output

(MA,MB,MC)

4

 

n41

Analog Freq.. Reference Gain

0

 

 

 

 

 

n42

Analog Freq.. Reference Bias

99

 

n46

Carrier Frequency

2

 

 

 

 

 

n58

Frequency Detection Level

20

 

n01

Access Level

0

21

 

 

 

*36 inch wheel is 66% (40Hz).. All other wheels are 100% (60Hz)..

Image 21
Contents Read and Save These INSTRUCTIONS461248 Indirect Evaporative CoolerDirect Evaporative Cooler TABLE OF Contents StorageBasic Operation Installation Safety WarningLifting Roof Curb Mounting Ductwork Connections Rail MountingSupply Weatherhood Exhaust WeatherhoodElectrical Information Exploded Detail Terminal Strip TYPICAL CONTROL CENTER COMPONENTSService Clearances / access panel locations HRE-20 HRE-45HRE-55 HRE-90 Model Exterior Dimensions HRE-20 Dimensional Data / Access Door DescriptionsOverall Exterior Dimensions Model Dimensional dataStandard Trap and Supply Line Configuration Evap Module InstallationEvaporative Cooling Modules Evap Module START-UPWater Flow Adjustment DevicePump and Float Components HRE Water SUPPLY CONNECTION LocationTop View Trap & Supply Line Configuration with Auto Drain and Fill EvaporativeEvaporative FreezeTimer ProtectionWater Control Options for Evaporative Cooling Auto Drain and Fill with Freeze ProtectionDrain Trap Drain and Overflow Connection Locations Symptom Solution Troubleshooting for evaporative moduleEvaporative Cooling Maintenance Electric Heater Application/Operation Optional accessoriesElectric Preheater Post-Heater Control PanelTimer Frost Threshold TemperaturesTesting Frost Control Application/OperationModulating the Wheel Enthalpy Sensor With Override Economizer Application/OperationYaskawa Yaskawa E7 Variable Frequency Drives for BlowersFactory Setpoints Modulating Control 0-10 VDC for FAN Speed Variable Frequency Drives for Energy Recovery WheelTransformer Wiring DiagramDirty Filter Sensor Rotation SensorService Outlet CO2 SensorVapor Tight Lights Remote Control Panel and Wiring Schematics Optional AccessoriesIndicator Lights powered by the ER Unit Remote Panel Wiring SchematicsHeating/Cooling Switches and Night Setback Switch/Timer Sensors Mounted by Factory Temperature Sensors 1K Ohm RTDStart-Up Checklist for unit Safety DangerSafety Caution Start-Up Checklist Start-Up Checklist for Evaporative CoolerSpecial Tools Required Optional Accessories section Optional Accessories ChecklistEconomizer Application / Operation section Variable Frequency Drives sectionFans Forward Curved Type Unit start-upFan Performance Modifications Fan Belt DrivesFan RPM Direction of Fan Wheel RotationVibration Rotation DirectionDrive Belt Air SealsInside layout of HRE unit Date Routine maintenanceDampers LubricationFan Belts Fan MotorsInternal Filter Maintenance External Filter MaintenanceDoor Seal Maintenance BearingsEnergy Recovery Wheel Maintenance Access to wheel through Outdoor air filter doorWheel segment removed Wheel Bearing Wheel Belt & PulleyModel HRE Parts ListBasic Unit Sequence of OperationSummer Operation Winter OperationTest and Balance Report Pressure Drop Across Energy Recovery WheelDesign Airflow Measured AirflowSymptom Possible Cause Corrective Action TroubleshootingWarranty
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45, 55, 90, HRE-20 specifications

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