180
RT-SVX073A-EN
Notes:
• Item 5 resets the drive to the default
factory settings. The program
parameters listed in Table 78, p. 180 and
Table 79, p. 182 will need to be verified
or changed as described in Items 3 and 4.
• Some of the parameters listed in the
table are motor specific. Due to various
motors and efficiencies available, use
only the values stamped on the specific
motor nameplate. Do not use the Unit
nameplate values.
• A backup copy of the current setup may
be saved to the LCP before changing
parameters or resetting the drive . See
LCP Copy in the VFD Operating
Instructions for details.
6. Follow the start-up procedures for supply fan in the
“Variable Air Volume System” section or the “Relief
Airflow Measurement” start-up procedures for the relief
fan.
7. After verifying that the VFD(s) are operating properly,
press the STOP key to stop the unit operation.
8. Follow the applicable steps in the “Final Unit Checkout”
section to return the unit to its normal operating mode.
If a problem with a VFD occurs, ensure that the
programmed parameters listed for supply and relief VFD
have been set before replacing the drive.
Table 78. Supply fan VDF programming parameters
Menu ID
Description Parameter Setting
Operation Display
0-01 Language [0] English US
0-03 Regional Settings [1] North American
0-06
Grid Type
Set to applicable unit power supply [102] 200-240V/60HZ for 208 & 230V/60HZ
units [122] 440-480V/60Hz for 460V/60Hz units [132] 525-600V/60Hz for 575V/
60Hz units [12] 380-440V/50Hz for 380 & 415V/50Hz supply For IT Grid (no
ground connections) or Corner grounded Delta power supply systems, the
applicable voltage/Hz and IT-Grid or Delta should be selected.
0-40 [Hand on] - Key on LCP [0] Disabled
Load and Motor
1-20 Motor Power [HP] Per Motor Nameplate HP
1-22 Motor Voltage (V) Per Motor Nameplate Voltage
1-23 Motor Frequency (HZ) Per Motor Nameplate Frequency
1-24 Motor Current (A) Per Motor Nameplate FLA
1-25 Motor Nominal Speed (RPM) Per Motor Nameplate Rated Speed
1-73 Flying Start [1] Enabled
1-90 Motor Thermal Protection [4] ETR Trip1
Brakes
2-00 DC Hold / Preheat Current (%) [0] 0%
2-01 DC Brake Current (%) [0] 0%
2-04 DC Brake Cut In Speed (HZ) [10] 10Hz
Reference/ramps
3-02 Minimum Reference (HZ) [22] 22 Hz
3-03 Maximum Reference (HZ) [50] 50 Hz - 380/50Hz SUPPLY ONLY [60] 60 Hz
3-15 Reference 1 Source [11] Local bus reference
3-16 Reference 2 Source [0] No function
3-17 Reference 3 Source [0] No function
3-41 Ramp 1 Ramp Up Time (S) [30] 30s
3-42 Ramp 1 Ramp Down Time (S) [30] 30s
Service and Maintenance
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