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S1toSNcontactforOn/Off
A1(0-10VDC)referencedtoAC(Canuse+15VDCfrom+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
S1 to SC contact for On/Off
FR(0-10VDC)referencedtoFC(Canuse+12VDCfromFS)
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 - MODULATING CONTROL (0-10 VDC) FOR FAN SPEED
Yaskawa E7 Drive Yaskawa GPD-305 Drive
OPTIONAL ACCESSORIES
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”.
Factory Setpoints - MULTI-SPEED CONTROL (1/3 OR 1/2 SPEED REDUCTION) FOR FAN SPEED
S1toSNcontactforOn/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
Yaskawa E7 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)
Yaskawa GPD-305 Drive
Variable Frequency Drives for
Energy Recovery Wheel
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.
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
Yaskawa GPD-305 Drive
*36 inch wheel is 66% (40Hz). All other wheels are 100% (60Hz).