Attaching To Other Ccn Modules; Service Operation; To Access The Service Screens; To Log Out Of Network Device - Carrier 19XRV Start-Up, Operation And Maintenance Instructions Manual

ATTACHING TO OTHER CCN MODULES — If the chill-
er ICVC has been connected by CCN wiring to the CCN net-
work or other PIC controlled chillers, the ICVC can be used to
view or change parameters on the other controllers. Other PIC
III chillers can be viewed and set points changed (if the other
unit is in CCN control), if desired, from this particular ICVC
module.
If the module number is not valid, the "COMMUNICA-
TION FAILURE" message will show and a new address
number must be entered or the wiring checked. If the module is
communicating properly, the "UPLOAD IN PROGRESS"
message will flash and the new module can now be viewed.
Whenever there is a question regarding which module on
the ICVC is currently being shown, check the device name
descriptor on the upper left hand corner of the ICVC screen.
See Fig. 25.
When the CCN device has been viewed, the ATTACH TO
NETWORK DEVICE table should be used to attach to the PIC
that is on the chiller. Move to the ATTACH TO NETWORK
DEVICE table (LOCAL should be highlighted) and press the
softkey to upload the LOCAL device. The ICVC
ATTACH
for the 19XRV will be uploaded and default screen will display.
NOTE: The ICVC will not automatically reattach to the local
module on the chiller. Press the
the LOCAL device and view the chiller operation.
Fig. 25 — Example of Attach to Network
Device Screen
Service Operation —
screens available for the SERVICE function is shown in
Fig. 18.
TO ACCESS THE SERVICE SCREENS — When the SER-
VICE screens are accessed, a password must be entered.
1. From the main MENU screen, press the
softkey. The softkeys now correspond to the numerals 1,
2, 3, 4.
2. Press the four digits of the password, one at a time. An as-
terisk (*) appears as each digit is entered.
NOTE: The initial factory-set password is 1-1-1-1. If the
password is incorrect, an error message is displayed.
softkey to attach to
ATTACH
a19-1743
An overview of the tables and
SERVICE
If this occurs, return to Step 1 and try to access the
SERVICE screens again. If the password is correct, the
softkey labels change to:
NOTE: The SERVICE screen password can be changed
by entering the ICVC CONFIGURATION screen under
SERVICE menu. The password is located at the bottom
of the menu.
The ICVC screen displays the following list of available
SERVICE screens:
• Alarm History
• Alert History
• Control Test
• Control Algorithm Status
• Equipment Configuration
• VFD Config Data
• Equipment Service
• Time and Date
• Attach to Network Device
• Log Out of Device
• ICVC Configuration
See Fig. 18 for additional screens and tables available from
the SERVICE screens listed above. Use the
return to the main MENU screen.
NOTE: To prevent unauthorized persons from accessing the
ICVC service screens, the ICVC automatically signs off and
password-protects itself if a key has not been pressed for
15 minutes. The sequence is as follows. Fifteen minutes after
the last key is pressed, the default screen displays, the ICVC
screen light goes out (analogous to a screen saver), and the
ICVC logs out of the password-protected SERVICE menu.
Other screen and menus, such as the STATUS screen can be
accessed without the password by pressing the appropriate
softkey.
TO LOG OUT OF NETWORK DEVICE — To access this
screen and log out of a network device, from the default ICVC
screen, press the
MENU
password and, from the SERVICE menu, highlight LOG OUT
OF NETWORK DEVICE and press the
The ICVC default screen will now be displayed.
TIME BROADCAST ENABLE — The first displayed line,
"Time Broadcast Enable", in the SERVICE/EQUIPMENT
CONFIGURATION/BRODEF screen, is used to designate the
local chiller as the sole time broadcaster on a CCN network
(there may only be one). If there is no CCN network present
and/or there is no designated time broadcaster on the network,
current time and date, Daylight Saving Time (DST), and holi-
days as configured in the local chiller's control will be applied.
If a network is present and one time broadcaster on the network
has been enabled, current time and date, DST, and holiday
schedules as configured in the controls of the designated time
broadcaster will be applied to all CCN devices (including chill-
ers) on the network.
51
softkey to
EXIT
and softkeys. Enter the
SERVICE
softkey.
SELECT