ABB CBXi-8R8 User manual

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INSTALLATION AND WIRING
BDS0024 rev 8
CBXi-8R8, CBXi-8R8-H
©ABB 2021 All Rights Reserved.
Subject to change without notice
1
BDS0024 rev 8
Ground
Common
Point Numbers
Terminal Numbers
Relay Common
(24 V only)
CAUTION -DANGER OF EXPLOSIONIF BATTERY IS INCORRECTLY REPLACED. REPLACE ONLY WITH THE SAME OR EQUIVALENT
TYPE RECOMMENDED BY THE MANUFACTURER. DISPOSE OF USED BATTERIES ACCORDING TO THE MANUFACTURER'S
INSTRUCTIONS.
Supply Requirements
24 V AC/DC ±20 % 50/60 Hz
Supply
Rating
CBXi
30 VA (no FLX modules)
CBXi + 1 x FLX
42 VA
CBXi + 2 x FLX
54 VA
CBXi + 3 x FLX
66 VA
FLX Power Connection
Proprietary FLX bus connector carries power and comms from CBXi-8R8 unit.
CBX-8R8 can supply power to up to 3 FLX modules.
Auxiliary Power
18 V DC / 60 mA output
BACnet Loading
¼ unit load device
Terminal
Numbers /
Klemm-
nummer
Description
93, 94
24 V AC/DC Power
13 … 15
Auxiliary Power: 18 V DC output on 2 terminals, 60 mA total
95, 96
RS-485 Port 1 (BACnet® MS/TP/ Modbus RTU) screw terminal
MS/TP subnet terminator switch is located beside the port. If the switch is towards the icon, then termination
is in and if the switch is towards the icon then termination is out.
39 … 42
CBT-STAT / RS-485 Port 2 (CBT-STAT)
The bus Terminator Switch is located beside the port. If the switch is towards the icon, then termination is in
and if the switch is towards the icon then termination is out.

©ABB 2021 All Rights Reserved.
Subject to change without notice
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2
BDS0024 rev 8
1 … 12
Universal Inputs
When input is configured as Digital:
•LED Off: open circuit or logic 'off'
•LED On: logic 'on'
When input is configured as Resistor/thermistor:
•LED Off: valid resistance connected (Note: 0 Ωis counted as valid)
•LED Slow blink: resistor/thermistor not connected
When input is configured as Analog:
•LED intensity is modulated by the analog signal
When the LED is blinking:
•Fast blink indicates error condition
•Two short flashes followed by a value*indicates the input is in an override state (overridden by CXproHD).
*Note: The LED intensity illustrates the value measured at the input terminals. The flash indicates that this
value has been overridden.
25 … 38
UniPuts™ + Relay
When a Uniputchannel is configuredasan input, the LED signals are identical to Universal Inputs above. When configured
as an output the following apply:
When output is configured as Digital:
•LED Off: open circuit or logic 'off'
•LED On: logic 'on'
When output is configured as Analog:
•LED intensity is modulated by the analog signal
When the LED is blinking:
•Fast blink indicates error condition
•Two short flashes followed by a value indicates the output is in an override state (overridden by CXproHD or
HOA).
Service Port (Micro USB)
Ethernet Ports
Indicator LEDs
Off
On
Slow Blink
Fast blink
Red LED
(Power)
Power is off
Power is on
___ Unit Rebooting ___
Green LED
(Status)
Unit is not running
Strategy Loaded but no
network connectivity
StrategyLoaded and device
communicating onnetwork
No Strategy
loaded
Yellow LED
(FLX)
FLX bus comms are ok
No FLX bus comms
FLX bus address clash
FLX bus comms
error
During firmware upgrade the Yellow LED will remain on while the strategy/comms section reboots, and then the LEDs will
rotate Red-Green-Yellow while the IO section reboots.
Note: During typical operation, the Red LED
should be on, the Green LED should be
blinking and the Yellow LED should be off.
Output Override (CBXi-8R8-H only)
Bottom position: Off - outputs forced off.
Centre position: Auto - outputs are controlled by strategy.
Top position: Manual - for digital outputs, the output is forced on. For analog outputs the knob setting controls the output
value.
Note: Manual position is supervised, i.e. the strategy is aware of the manual value.
Push buttons
Reset IP/Password : while the controller is running , press SW 1until the LED lights up, then release SW1.
Full factory reset : while the controller is booting hold SW1 until the LED lights up, then release SW1.
Restart the controller : while the controller is running , press SW2until the LEDlights up., then release SW2.
Inter-module connection sockets
To join the FLX bus, place the devices side-by-side and place the FLX bus connector into the two adjacent sockets at once.
The end device on a FLX bus (either a FLX device or the CBXi itself) must have a terminator inserted into its interconnector socket. One
terminator is shipped with each CBXi-8R8(-H) device.