Scrolling Marquee Display; Accessory Navigatort Display; Carrier Comfort Network (Ccn) R Interface - Carrier 48LC 04 Controls, Start-Up, Operation And Troubleshooting

ALARM ALARM NAME
CODE IN PANEL
2013* AUTORESET
2014
AUTOCHANGE
2015 PFA INTERLOCK
2016 ---
2017* OFF BUTTON
2018 PID SLEEP
2019 ID RUN
2020 OVERRIDE
START ENABLE 1
2021
MISSING
START ENABLE 2
2022
MISSING
2023 EMERGENCY STOP
* This alarm is not indicated by a relay output, even when the relay output is configured to indicate alarm conditions, parameter 1401 RELAY OUTPUT = 5
(ALARM) or 16 (FLT/ALARM).

Scrolling Marquee Display

This device is the keypad interface used to access rooftop
information, read sensor values, and test the unit. (See Fig. 22.)
The Scrolling Marquee display is a 4-key, 4-character, 16-segment
LED (light-emitting diode) display. Eleven mode LEDs are located
on the display as well as an Alarm Status LED. See Basic Control
Usage section for further details.

Accessory Navigatort Display

The accessory hand-held Navigator display can be used with
48/50LC units. (See Fig. 23.) The Navigator display operates the
same way as the Scrolling Marquee device. The Navigator display
plugs into the LEN port on either TB or the ECB board.
MODE
Run Status
Service Test
Temperature
Pressures
Setpoints
Alarm Status
Inputs
Outputs
ESCAPE
Configuration
Time Clock
Operating Modes
Alarms
Fig. 22 - - Scrolling Marquee
Fig. 23 - - Accessory Navigatort Display
Table 28 — ALARM CODES (cont)
DESCRIPTION AND RECOMMENDED CORRECTIVE ACTION
This alarm warns that the drive is about to perform an automatic fault reset, which may start the motor. To
control automatic reset, use parameter group 31 (AUTOMATIC RESET).
This alarm warns that the PFA autochange function is active. To control PFA, use parameter group 81 (PFA) and the
Pump Alternation macro.
This alarm warns that the PFA interlocks are active, which means that the drive cannot start any motor (when
Autochange is used), or a speed regulated motor (when Autochange is not used).
Reserved
This alarm indicates that the OFF button has been pressed.
This alarm warns that the PID sleep function is active, which means that the motor could accelerate when the PID
sleep function ends. To control PID sleep, use parameters 4022 through 4026 or 4122 through 4126.
The VFD is performing an ID run.
Override mode is activated.
This alarm warns that the Start Enable 1 signal is missing. To control Start Enable 1 function, use parameter 1608. To
correct, check the digital input configuration and the communication settings.
This alarm warns that the Start Enable 2 signal is missing. To control Start Enable 2 function, use parameter1609. To
correct, check the digital input configuration and the communication settings.
Emergency stop is activated.
ENTER
C06320
C06321
Carrier Comfort Network (CCN)
The units can be connected to the CCN if desired. The
communication bus wiring is a shielded, 3-conductor cable with
drain wire and is field supplied and installed. The system elements
are connected to the communication bus in a daisy chain
arrangement. (See Fig. 24.) The positive pin of each system
element communication connector must be wired to the positive
pins of the system elements on either side of it. This is also
required for the negative and signal ground pins of each system
element. Wiring connections for CCN should be made at the CIB.
(See Figs. 11 and 12.) Consult the CCN Contractor's Manual for
further information.
NOTE: Conductors and drain wire must be 20 AWG (American
Wire Gauge) minimum stranded, tinned copper. Individual
conductors must be insulated with PVC, PVC/nylon, vinyl, Teflon,
or polyethylene. An aluminum/polyester 100% foil shield and an
outer jacket of PVC, PVC/nylon, chrome vinyl, or Teflon with a
minimum operating temperature range of –20_C to 60_C is
required. See Table below for acceptable wiring.
MANUFACTURER
Alpha
Belden
Carol
West Penn
It is important when connecting to a CCN communication bus that
a color-coding scheme be used for the entire network to simplify
the installation. It is recommended that red be used for the signal
positive, black for the signal negative and white for the signal
ground. Use a similar scheme for cables containing different
colored wires.
At each system element, the shields of its communication bus
cables must be tied together. The shield screw on CIB can be used
to tie the cables together. If the communication bus is entirely
within one building, the resulting continuous shield must be
connected to a ground at one point only. The shield screw on CIB
is not acceptable for grounding. If the communication bus cable
exits from one building and enters another, the shields must be
connected to grounds at the lightning suppressor in each building
where the cable enters or exits the building (one point per building
only).
61
R
Interface
PART NO.
2413 or 5463
8772
C2528
302