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ABB VARIABLE FREQUENCY DRIVES
RENEWAIRE.COM
ABB VFD SUPPLEMENTAL MANUAL
1.800.627.4499
6
F2
FACTORY CONTROL WIRING: ON SIGNALS CONNECTED TO EACH VFD.
WIRING SCHEMATICS
INSTALLATION
See Fig. 1
for Relay or Damper Actuator
Connection alternatives.
DO NOT CONNECT POWER TO
TERMINALS 9-15 ON EITHER VFD
F3
ALTERNATIVE CONTROL WIRING: ON SIGNAL CONNECTED DIRECTLY
TO ONE VFD, PASSED TO SECOND VFD FROM TERMINALS 17 & 19.
9
10
11
12
15
8
7
6
5
4
3
2
1
AGND
A01
AGND
AI2
10V
AGND
AI1
SCR
VFD (
F
A)
9
10
11
12
15
8
7
6
5
4
3
2
1
AGND
A01
AGND
AI2
10V
AGND
AI1
SCR
VFD (EA)
17
19
PARAMETER SETTINGS - FA VFD
Parameter
Setting
Parameter Description
1401
2 = RUN
Closes contact between 17 & 19 when
VFD is called to RUN.
Install these
wires -
FA VFD will turn
EA Blower ON
Close contact to
turn FA Blower ON
DO NOT CONNECT POWER TO
TERMINALS 9-15 ON EITHER VFD
NOTE:
ERV may optionally have
only one VFD.
9
10
11
12
15
8
7
6
5
4
3
2
1
AGND
A01
AGND
AI2
10V
AGND
AI1
SCR
VF
D
(F
A)
9
10
11
12
15
8
7
6
5
4
3
2
1
AGND
A01
AGND
AI2
10V
AGND
AI1
SCR
VFD (EA)