Greenheck Fan PVE-55 Variable Frequency Drives for Energy Recovery Blowers, Factory Set Points

Variable Frequency Drives for Energy Recovery Blowers

Optional factory installed, wired, and programmed variable frequency drives (VFDs) may have been provided for modulating or multispeed control of the blowers. One VFD is provided for each blower (supply air and exhaust). The VFD’s provided are either Yaskawa model V1000 or J1000. 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 (an example wiring diagram has been provided in this manual for reference). When making adjustments outside of the factory set points, refer to Yaskawa VFD instruction manual, which can be found online at www.drives.com. For technical support, contact Yaskawa direct at 1-800-927-5292.

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 MA MB MC

V1000

OPTION 1 - 0-10 VDC CONTROL

USER TO PROVIDE ISOLATION AS REQUIRED

A1	AC	0-10 VDC CONTROL SIGNAL (BY OTHERS)
		WIRED TO A1 (+) AND AC (COMMON)
		0 VDC=30 Hz
		10 VDC=60 Hz

FOR ONE 0-10 SIGNAL, WIRE TO DRIVES IN PARALLEL SEE VFD INSTALLATION MANUAL FOR MORE DETAIL

FOR CONTINUOUS 60Hz OPERATION JUMPER TERMINALS A1 AND +V.

OPTION 2 - MULTI SPEED CONTROL

USER TO PROVIDE CONTACTS AND ISOLATION

AS REQUIRED

S4	S5	SC	NEITHER S4 OR S5 CONTACT CLOSED
			DRIVE SPEED = 60 Hz.
			S4 TO SC CONTACT CLOSED (BY OTHERS)
			DRIVE SPEED = 40 Hz.
			S5 TO SC CONTACT CLOSED (BY OTHERS)
			DRIVE SPEED = 30 Hz.

SEE VFD INSTALLATION MANUAL FOR MORE DETAIL

TO CHANGE THE FACTORY SET Hz CHANGE THE FOLLOWING PARAMETERS.

PARAMETER A1-01 CHANGE TO 2

PARAMETER d1-01 FOR NEW 60Hz SETTING

PARAMETER d1-02 FOR NEW 40Hz SETTING

PARAMETER d1-03 FOR NEW 30Hz SETTING

PARAMETER A1-01 CHANGE TO 0

12Model PVe Heat Recovery Unit

S1 S2 S3 S4 S5 SC A1 +V AC AM AC	MA MB MC
J1000

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 30 and 60Hz

Multispeed: Digital contact closures by others command the VFD to run at multiple speed settings:

•SC to S4 - Drive runs at 40Hz

•SC to S5 - Drive runs at 30Hz

CO2 Sensor: A digital contact closure from an optional factory provided CO2 sensor sends the VFD to high or low speed depending on CO2 ppm levels at the sensor.

The terminal locations for Modulating (option 1) and Multispeed (option 2) are shown on the left. 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 on the next page. These settings are based on the VFD mode selected.

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