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Table 7 — Air Handler VFD Factory-Set Parameters
GROUP NUMBER
PARAMETER
NUMBER
DESCRIPTION
VFD DRIVE ONLY PARAMETERS
99
9902
Application Macro
Supply Fan
9904
Motor Control Mode
Scalar
9905
Motor Normal Voltage
*
9906
Motor Normal Current
†
9907
Motor Normal Frequency
60 Hz or 50 Hz
9908
Motor Normal Speed
Name plate rpm at load
9909
Motor Normal Power
Nameplate Hp
10
1001
EXT 1 Commands
DI-1 / 1001 (Start/Stop)
1002
EXT 2 Commands
(0) N/A
1003
Direction
Forward
11
1104
REF 1 Minimum
9.33 Hz at 60 Hz/ 7.78 Hz 50 Hz
1105
REF 1 Maximum
Belt Drive 60Hz/50Hz Direct Drive Calculated Per
Fan and Motor
12
1201
Constant Speed Select
DI-3
1202
Constant Speed Value
Field Program
(8Hz - Motor Nominal Freq.)
13
1301
Minimum AI-1
0%
1302
Maximum AI-1
100%
1303
Filter AI-1
1 sec.
1304
Minimum AI-2
0%
1305
Maximum AI-2
100%
1306
Filter Ai-2
1 sec.
14
1401
Relay Output 1
Started
1402
Relay Output 2
Run
1403
Relay Output 3
Fault (inverted)
16
1601
Run Ena
b
le
DI-2 / 1601
1608
Start Ena
b
le 1 (safety 1)
DI-4 / 1608
1609
Start Ena
b
le 2 (safety 2)
DI-5 / 1609
20
2002
Maximum Fan Speed
Per Fan
2003
Maximum Current
**
2007
Minimum Frequency
8Hz
2008
Maximum Frequency
Belt Drive 60Hz/50Hz Direct Drive Calculated Per
Fan and Motor
21
2101
Start Function
Fly Start
2102
Stop Function
Coast
22
2202
Acceleration Time
60 Seconds
2203
Deceleration Time
60 Seconds
26
2605
Volt/Freq Ratio
Linear
2606
Switching Frequency
8 Hz
2607
Switching Frequency Control
ON
30
3006
Motor Thermal Time
1050
3007
Motor Load Curve
105%
3008
Zero Speed Load
70%
3009
Break Point Frequency
35 Hz
3010
Stall Function
Fault
3011
Stall Frequency
20 Hz
3012
Stall Time
20 Sec.
3017
Earth Fault
Fault
31
3101
Num
b
er of Retries
2
3102
Trial Time
600 sec.
3103
Delay Time
5 sec.
3104
AR Overcurrent
Ena
b
le
3105
AR Overvoltage
Ena
b
le
3106
AR Under voltage
Ena
b
le
3107
AR AI< Minimum
(0) Disa
b
le
3108
AR External Fault
(0) Disa
b
le