207
Table 166 — Power Connection Torque Values
6. Turn on power to the unit and allow the drive screen to be-
come active. The drive will need to be manually addressed
for the control system to export the correct parameters. Use
this procedure to address the VFDs:
a. Using the display interface on the VFD drive, touch
the Main Menu button twice. Navigate to menu item
8-30 and confirm that the LEN option is selected:
Using the UP/DOWN arrows and OK button, follow
the path: 8-** (Command Options)
8-3* (FC Port
Settings)
8-30 (Protocol). If LEN is not selected,
touch the OK button and use the arrow keys to scroll
through the options and select it. If no LEN option
appears, LEN communication is not enabled on the
drive. Follow the process described in the next sec-
tion, Enable LEN Communication, and then complete
the following addressing procedure.
b. Navigate to menu item 8-31 on the VFD display and
enter the address for the drive being configured: Follow
the path: 8-** (Command Options)
8-3* (FC Port
Settings)
8-31 (Address). Touch the OK button and
use the UP/DOWN arrow keys to select the drive
address. See Table 48 to determine the correct address.
For fan drives, see Fig. 88 for typical arrangement. For
compressor drives, see Fig. 89 for typical location.
c. Turn the chiller power off and then on again. Cycling the
power will cause the control system to send the correct
configuration data files to the new drive.
d. Verify that communication with the new drive has been
established. For fan drives follow the Carrier Controller
path: Main Menu
Maintenance Menu
Fan
Drive Addressing and confirm that the relevant Comm
Fan Drive Xn status is Yes. For compressor drives fol-
low the path: Main Menu
Maintenance Menu
VLT Drive Maintenance and confirm that the relevant
Comm with Drive X status is Yes.
Enable LEN Communication
If the replacement drive received does not have LEN as an op-
tion under menu item 8-30 on the VFD display, LEN will need
to be manually enabled before the drive can be addressed. To
enable the LEN communication option:
1. Enable access to the hidden Typecode Parameter by navi-
gating to menu item 14-29 on the VFD display: touch the
Main Menu button and then follow the path 14-** (Spe-
cial Functions)
14-2* (Reset Functions)
14-29
(Service Code). Set the 14-29 parameter to 00006100.
Setting this parameter will enable access to hidden pa-
rameter 14-23 (Typecode Setting). Touch OK.
2. Navigate to menu item 14-23: Touch the BACK button and
use the UP arrow to reach 14-23 (Typecode Setting). Touch
the OK button once. A cursor will appear on the value [00]
just below the parameter number and name. Increase this
value by touching the UP key until the parameter has a value
of [12] and the display shows “[nnn] SXXX {std. sw).”
Touch OK and use the UP/DOWN buttons to change the val-
ue to “[231 ] S009 {Special sw).” Touch OK again. Touch
the UP button until the value is [20]. Touch the OK button
once, and change the displayed value to [1] (Save to EE-
PROM) using the arrow key. Touch OK again.
3. The drive should display an alarm A251 New Type Code.
Power down the drive by touching the OFF button. Restart
the drive with the AUTO ON button.
4. Proceed with the Addressing VFD instruction above to com-
plete the configuration process.
LONG TERM STORAGE
If the unit is stored for long periods of time without use, special
procedures must be performed to ensure the safe and efficient
operation of the VFD capacitor banks. If the unit has been
stored for more than 3 years without power applied to the
drives, contact Carrier Service to obtain information and in-
structions for reforming the capacitor banks.
CARRIER PART NO.
LINE/MOTOR POWER
(in.-lb)
GROUND
(in.-lb)
COMPRESSOR DRIVES
HR46ZY001/HR46ZY023 89 27
HR46ZY002/HR46ZY024 89 27
HR46ZY003/HR46ZY025 124 27
HR46ZY004/HR46ZY026 124 27
HR46ZY005/HR46ZY027 168 75
HR46ZY006/HR46ZY028 168 75
HR46ZY007/HR46ZY029 168 75
HR46ZY008/HR46ZY031 168 75
HR46ZY009/HR46ZY032 168 75
HR46ZY010 168 75
HR46ZY011 168 75
HR46ZY012/HR46ZY034 168 75
HR46ZY013 168 75
HR46ZY014/HR46ZY030 168 75
HR46ZY015/HR46ZY033 168 75
HR46ZY016/HR46ZY035 168 75
HR46ZY017/HR46ZY036 168 75
HR46ZY018/HR46ZY037 168 75
HR46ZY019 168 75
HR46ZY020 168 75
HR46ZY021 168 75
HR46ZY022 168 75
FAN DRIVES
HR46ZQ003 16 27
HR46ZS003 16 27
HR46ZS004 16 27
HR46ZT002 16 27
HR46ZT003 16 27
HR46ZT004 22 27
HR46ZT005 16 27
HR46ZT006 16 27
HR46ZU002 16 27
HR46ZU003 16 27
HR46ZU004 16 27
HR46ZU005 16 27
HR46ZU006 16 27
HR46ZV001 22 27
HR46ZV002 22 27
HR46ZV003 22 27
HR46ZV004 22 27
HR46ZW001 22 27
HR46ZW002 22 27
HR46ZW003 22 27
HR46ZW004 22 27
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