98
Table 77 — Display Configuration
Table 78 — Supply Fan VFD Configuration
*This default is model number dependent.
Table 79 — Exhaust Fan VFD Configuration
*This default is model number dependent.
EXHAUST FAN VFD CONFIGURATION
The sub-menu that contains these configurations is located at
the local display under Configuration
E.VFD.
VFD2 Nominal Motor Volts (N.VLT)
This configuration defines the nominal motor voltage. This val-
ue must equal the value on the motor rating plate. This value sets
the maximum drive output voltage supplied to the motor.
NOTE: The VFD cannot supply the motor with a voltage greater
than the voltage supplied to the VFD input. Power to the VFD must
be cycled for a change to this configuration to take effect.
VFD2 Nominal Motor Amps (N.AMP)
This configuration defines the nominal motor current. This val-
ue must equal the value defined in:
• the High-Capacity Power Exhaust Systems Motor Limita-
tions table (Table 28) if BP.CF=4
• the Supply Fan Motor Limitations table (Table 26) if
BP.CF=5
• the Optional VFD Power Exhaust Motor Limitations table
(Table 80) if BP.CF=3
Power to the VFD must be cycled in order for a change to this
configuration to take effect.
VFD2 Nominal Motor Freq (N.FRQ)
This configuration defines the nominal motor frequency. This
value must equal the value on the motor rating plate. This val-
ue sets the frequency at which the output voltage equals the
Nominal Motor Volts (N.VLT). Power to the VFD must be cy-
cled in order for a change to this configuration to take effect.
Table 80 — Optional VFD Power Exhaust (PE) Motor
Limitations (FLA)
VFD2 Nominal Motor RPM (N.RPM)
This configuration defines the nominal motor speed. This value
must equal the value on the motor rating plate. Power to the VFD
must be cycled for a change to this configuration to take effect.
VFD2 Nominal Motor HPwr (N.PWR)
This configuration defines the nominal motor power. This value
must equal the value of the combined HP of both motors. Motor
HP is found on the motor rating plate. Power to the VFD must be
cycled in order for a change to this configuration to take effect.
VFD2 Motor Direction (M.DIR)
This configuration sets the direction of motor rotation. Motor
direction change occurs immediately upon a change to this
configuration. Power to the VFD need NOT be cycled for a
change to this configuration to take effect.
ITEM EXPANSION RANGE UNITS CCN POINT DEFAULT
TEST Test Display LEDs ON/OFF TEST Off
METR Metric Display ON/OFF DISPUNIT Off
LANG Language Selection 0-1(multi-text strings) LANGUAGE 0
PAS.E Password Enable ENABLE/DISABLE PASS_EBL Enable
PASS Service Password 0000-9999 PASSWORD 1111
ITEM EXPANSION RANGE UNITS CCN POINT DEFAULT
S.VFD SUPPLY FAN VFD CONFIG
N.VLT VFD1 Nominal Motor Volts 0 to 999 Volts VFD1NVLT 460*
N.AMP VFD1 Nominal Motor Amps 0 to 999 Amps VFD1NAMP 55.0*
N.FRQ VFD1 Nominal Motor Freq 10 to 500 Hz VFD1NFRQ 60
N.RPM VFD1 Nominal Motor RPM 50 to 30000 RPM VFD1NRPM 1750
N.PWR VFD1 Nominal Motor HPwr 0 to 500 HP VFD1NPWR 40*
M.DIR VFD1 Motor Direction 0=FWD, 1=REV VFD1MDIR 0
ACCL VFD1 Acceleration Time 0 to 1800 sec VFD1ACCL 30
DECL VFD1 Deceleration Time 0 to 1800 sec VFD1DECL 30
SW.FQ VFD1 Switching Frequency 0=1kHz, 1=4kHz, 2=8kHz, 3=12kHz VFD1SWFQ 2
TYPE VFD1 Type 0=LEN, 1=ANALOG VFD1TYPE 0
ITEM EXPANSION RANGE UNITS CCN POINT DEFAULT
E.VFD EXHAUST FAN VFD CONFIG
N.VLT VFD2 Nominal Motor Volts 0 to 999 Volts VFD2NVLT 460*
N.AMP VFD2 Nominal Motor Amps 0 to 999 Amps VFD2NAMP 28.7*
N.FRQ VFD2 Nominal Motor Freq 10 to 500 Hz VFD2NFRQ 60
N.RPM VFD2 Nominal Motor RPM 50 to 30000 RPM VFD2NRPM 1750
N.PWR VFD2 Nominal Motor HPwr 0 to 500 H.P. VFD2NPWR 20*
M.DIR VFD2 Motor Direction 0=FWD, 1=REV VFD2MDIR 0
ACCL VFD2 Acceleration Time 0 to 1800 sec VFD2ACCL 30
DECL VFD2 Deceleration Time 0 to 1800 sec VFD2DECL 30
SW.FQ VFD2 Switching Frequency 0=1kHz, 1=4kHz, 2=8kHz, 3=12kHz VFD2SWFQ 2
TYPE VFD2 Type 0=LEN, 1=ANALOG VFD2TYPE 0
Power
Exhaust HP
UNIT VOLTAGE
208/230 380 460 575
High Efficiency PE
6 20.4 10.0 9.6 7.6
10 30.6 18.2 12.8 10.2
15 44.8 24.4 19.4 15.6
20 58.6 32.4 26.8 20.6
Premium Efficiency PE
6 16.0 — 8.0 —
10 29.4 — 13.6 —
15 43.0 — 19.4 —
20 56.0 — 25.2 —
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