Greenheck ECV Series Installation, Operation And Maintenance Manual page 18

Variable Frequency Drives
Optional factory installed, wired, and programmed
variable frequency drives (VFDs) may have been
provided for modulating or multi-speed control of the
blowers. One VFD, either Yaskawa model V1000 or
J1000, is provided for each blower (supply air and
exhaust).
ERV
Refer to the tables in this section for factory settings
and field wiring requirements. Refer to the unit control
center for unit specific wiring diagram. When making
adjustments outside of the factory set points, refer to
Yaskawa VFD instruction manual, which can be found
ERV
online at www.drives.com.
R+ R- S+ S- IG R+ R- S+ S- IG
P1 P2 PC A1 A2 +V AC AM AC MP P1 P2 PC A1 A2 +V AC AM AC MP
S1 S2 S3 S4 S5 S6 S7 HC SC H1 RP MAMBMC S1 S2 S3 S4 S5 S6 S7 HC SC H1
V1000 V1000
OPTION 1 - 0-10 VDC CONTROL
OPTION 1 - 0-10 VDC CONTROL
USER TO PROVIDE ISOLATION AS REQUIRED
USER TO PROVIDE ISOLATION AS REQUIRED
0-10 VDC CONTROL SIGNAL (BY OTHERS)
A1 AC
WIRED TO A1 (+) AND AC (COMMON)
0-10 VDC CONTROL SIGNAL (BY OTHERS)
0 VDC = 50% A1 AC
WIRED TO A1 (+) AND AC (COMMON)
10 VDC = 100%
0 VDC = 50%
FOR ONE 0-10 SIGNAL, WIRE TO DRIVES IN PARALLEL
10 VDC = 100%
SEE VFD INSTALLATION MANUAL FOR MORE DETAIL
FOR ONE 0-10 SIGNAL, WIRE TO DRIVES IN PARALLEL
FOR CONTINUOUS 60Hz OPERATION JUMPER TERMINALS A1 AND +V.
SEE VFD INSTALLATION MANUAL FOR MORE DETAIL
OPTION 2 - MULTI SPEED CONTROL
FOR CONTINUOUS 60Hz OPERATION JUMPER TERMINALS A1 AND +V.
USER TO PROVIDE CONTACTS AND ISOLATION AS REQUIRED
NEITHER S4 OR S5 CONTACT CLOSED
S4 S5 SC
DRIVE SPEED = 100%
OPTION 2 - MULTI SPEED CONTROL
S4 TO SC CONTACT CLOSED (BY OTHERS)
USER TO PROVIDE CONTACTS AND ISOLATION AS REQUIRED
DRIVE SPEED = 67%
NEITHER S4 OR S5 CONTACT CLOSED
S5 TO SC CONTACT CLOSED (BY OTHERS)
S4 S5 SC
DRIVE SPEED = 50%
DRIVE SPEED = 100%
SEE VFD INSTALLATION MANUAL FOR MORE DETAIL
S4 TO SC CONTACT CLOSED (BY OTHERS)
TO CHANGE THE FACTORY SET Hz CHANGE THE FOLLOWING PARAMETERS.
DRIVE SPEED = 67%
PARAMETER n01 CHANGE TO 1
PARAMETER n21 FOR NEW 60Hz SETTING
PARAMETER n22 FOR NEW 40Hz SETTING S5 TO SC CONTACT CLOSED (BY OTHERS)
PARAMETER n23 FOR NEW 30Hz SETTING
DRIVE SPEED = 50%
PARAMETER n01 CHANGE TO 0
SEE VFD INSTALLATION MANUAL FOR MORE DETAIL
TO CHANGE THE FACTORY SET Hz CHANGE THE FOLLOWING PARAMETERS.
PARAMETER n01 CHANGE TO 1
PARAMETER n21 FOR NEW 60Hz SETTING
PARAMETER n22 FOR NEW 40Hz SETTING
PARAMETER n23 FOR NEW 30Hz SETTING
PARAMETER n01 CHANGE TO 0
18 Energy Core Ventilator
R+ R- S+ S- IG
P1 P2 PC A1 A2 +V AC AM AC MP
S1 S2 S3 S4 S5 S6 S7 HC SC H1 RP MAMBMC
RP MAMBMC S1 S2 S3 S4 S5
J1000
V1000
Factory Set Points
Variable frequency drives (VFDs) for the blowers are
factory setup to operate in one of the three following
modes:
• Modulating: 0-10 VDC signal wired in the field by
others varies the speed of the blower between the
min and max Hz (Max. 90 Hz)
• Multi-speed: Digital contact closures by others
command the VFD to run at multiple speed settings:
○ Open - Drive runs at 100%
○ SC to S4 - Drive runs at 67%
○ SC to S5 - Drive runs at 50%
• CO Sensor:
2
○ Set Point Control: A carbon dioxide sensor is
provided from the factory for field mounting OR
unit mounting in the space(s) being served by the
energy recovery unit. The CO
to the unit VFD's with two preset speeds of 700
PPM or less CO
or greater CO
○ Proportional Control: A carbon dioxide sensor
is provided from the factory for field mounting OR
SC A1 +V AC AM AC MAMBMC S1 S2 S3 S4 S5 SC A1 +V AC AM AC MAMBMC
unit mounting in the space(s) being served by the
energy recovery unit. The CO
to the unit VFD's with default factory settings
of 500 PPM or less CO
J1000
1000 PPM or greater CO
Modulation of VFD occurs proportional to CO
between 500 and 1000 PPM.
The terminal locations for modulating and multi-speed
are shown on the previous page. Most of the set points
in the VFDs are Yaskawa factory defaults. However,
a few set points are changed at Greenheck and are
shown in the tables. These settings are based on the
VFD mode selected.
Change Set Points
To gain access to change set points on the V1000 and
J1000 drives, parameter A1-01 needs to be set at "2".
To prevent access or tampering with drive settings on
either drive, change parameter A1-01 to "0".
• Drive Operation
○ SC to S1 contact for On/Off
○ A1 (0-10 VDC) referenced to AC.
Can use +15 VDC from +V.
Resetting the V1000 drive to factory
defaults
To reset the V1000 drive back to Greenheck factory
defaults, go to parameter A1-01 and set it to "2". Then
go to A1-03 and change it to "1110" and press enter.
The drive is now reset to the settings programmed at
Greenheck. This option is not available on the J1000.
sensors are wired
2
= 50% fan speed and 800 PPM
2
= 100% fan speed.
2
S1 S2 S3 S4 S5 SC A1 +V AC AM AC MAMBMC
sensors are wired
2
J1000
= 50% fan speed and
2
= 100% fan speed.
2
2
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