Variable Frequency Drives - Greenheck HRE-20 Installation, operationand Maintenance Manual

OPTIONAL ACCESSORIES
Factory Setpoints -
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
A1-01 Access Level
C6-02 Carrier frequency
d2-02 Ref Lower Limit
E2-01 Motor Rated FLA
H3-03 Terminal A1 Bias
O2-03 User Defaults
A1-01 Access Level
Factory Setpoints -
Yaskawa E7 Drive
S1 to SN contact for On/Off
Parameter
A1-01 Access Level
b1-01 (Frequency) Reference Source
C6-02 Carrier frequency
d1-01 Frequency Reference 1
d1-02 Frequency Reference 2
d1-03 Frequency Reference 3
d1-04 Frequency Reference 4
E2-01 Motor Rated FLA
O2-03 User Defaults
A1-01 Access Level
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 .
Yaskawa GPD-305 Drive
Parameter
n01 Access Level
n30 Ref Upper Limit
n32 Motor Rated FLA
n33 Elect Thermal Overload
n36 Multi-Function input (terminal S2)
n40 Multi-Function output (MA,MB,MC)
n41 Analog Freq . Reference Gain
n42 Analog Freq . Reference Bias
n46 Carrier Frequency
n58 Frequency Detection Level
n01 Access Level
*36 inch wheel is 66% (40Hz) . All other wheels are 100% (60Hz) .
MODULATING CONTROL (0-10 VDC) FOR FAN SPEED
Setting
2
2
50%
Motor FLA
50%
1
0
MULTI-SPEED CONTROL (1/3 OR 1/2 SPEED REDUCTION) FOR FAN SPEED
Setting
2
0
2
60
40
30
60
Motor FLA
1
0
Yaskawa GPD-305 Drive
S1 to SC contact for On/Off
FR (0-10VDC) referenced to FC (Can use +12 VDC from FS)
n01
n31
n32
n40 Multi-Function output (MA,MB,MC)
n42 Analog Freq . Reference Bias
n46
n01
Yaskawa GPD-305 Drive
S1 to SC contact for On/Off
n01
n03
n21 Frequency Reference 1
n22 Frequency Reference 2
n23 Frequency Reference 3
n24 Frequency Reference 4
n32
n38* Multi-function Input Sel 4 (Term S4)
n39* Multi-function Input Sel 5 (Term S5)
n40 Multi-Function output (MA,MB,MC)
n46
n01
*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)
Setting
1
100% or 66%*
Motor FLA
1
10
4
0
99
2
20
0
Parameter
Access Level
Ref Lower Limit
Motor Rated FLA
Carrier Frequency
Access Level
Parameter
Access Level
Reference Selection
Motor Rated FLA
Carrier Frequency
Access Level
Setting
1
50%
Motor FLA
0
50%
2
0
Setting
1
1
60Hz
40Hz
30Hz
60Hz
Motor FLA
6
7
0
2
0
21