vi • Table of Contents
026-1705 Rev 7 06-APR-2010
Table of Contents
1 OVERVIEW OF THE MULTIFLEX CUB-II AND CUB-TD .................................................................................. 1
1.1. T
HE
M
ULTI
F
LEX
CUB-II.............................................................................................................................................. 1
1.2. T
HE
M
ULTI
F
LEX
CUB-TD ........................................................................................................................................... 1
2 MOUNTING AND POWERING.................................................................................................................................. 2
2.1. S
NAP
-T
RACK
I
NSTALLATION
........................................................................................................................................ 2
2.2. T
HE
P
LUG
-I
N
O
UTPUT
B
OARD
..................................................................................................................................... 3
2.3. P
OWERING
THE
M
ULTI
F
LEX
CUB B
OARD
................................................................................................................... 3
2.3.1. Choosing Transformer Sizes ................................................................................................................................. 4
2.3.2. MultiFlex CUB Power Wiring............................................................................................................................... 4
2.3.2.1. New-Style MultiFlex CUB Boards (With Isolated Power Supply) .................................................................................... 5
2.3.2.2. Old-Style MultiFlex CUB Boards (No Isolated Power Supply)......................................................................................... 5
2.3.3. Wire Types and Maximum Distances .................................................................................................................... 6
3 THE I/O NETWORK .................................................................................................................................................... 7
3.1. W
IRING
T
YPES
.............................................................................................................................................................. 7
3.1.1. Daisy Chains ......................................................................................................................................................... 7
3.1.2. Network ID Numbers............................................................................................................................................. 7
3.1.2.1. Numbering the MultiFlex
CUB ................................................................................................................................................................................................... 8
3.1.3. Setting the Baud Rate ............................................................................................................................................ 8
3.1.4. Setting the Terminating Resistance Jumpers ........................................................................................................ 8
4 CUB INPUT AND OUTPUT SETUP........................................................................................................................... 9
4.1. T
HE
I
NPUTS
................................................................................................................................................................... 9
4.1.1. Connecting Sensors to the MultiFlex CUB ........................................................................................................... 9
4.1.1.1. Wiring ................................................................................................................................................................................. 9
4.1.1.2. Sensor Wiring Types .......................................................................................................................................................... 9
4.1.1.3. Input Type Dip Switches .................................................................................................................................................... 9
4.1.2. Power Connection ............................................................................................................................................... 10
4.1.2.1. Current Ratings for On-Board Power Sources.................................................................................................................. 10
4.1.2.2. Powering Sensors Requiring 24VAC Off the Power Transformer................................................................................... 10
4.1.3. MultiFlex CUB Fixed Input Locations................................................................................................................ 10
4.2. T
HE
O
UTPUTS
............................................................................................................................................................. 11
4.2.1. Relay Output Ratings and Fuse Protection......................................................................................................... 12
4.2.2. Wiring Outputs to Points..................................................................................................................................... 12
4.2.3. MultiFlex CUB Fixed Outputs ............................................................................................................................ 12
5 BOARD STATUS LEDS ............................................................................................................................................. 13
5.1. S
TATUS
LED............................................................................................................................................................... 13
5.2. T
X
AND
R
X
LED
S
....................................................................................................................................................... 13
5.3. C
ODE
A
AND
C
ODE
B LED
S
...................................................................................................................................... 13
5.4. R
ELAY
O
UTPUT
LED
S
................................................................................................................................................ 14
6 MULTIFLEX CUB-II AND CUB-TD SOFTWARE OVERVIEW ........................................................................ 15
6.1. C
OMPRESSOR
C
ONTROL
.............................................................................................................................................. 15
6.1.1. Suction Pressure Compressor Control................................................................................................................ 15
6.1.2. Case Temperature Compressor Control ............................................................................................................. 15
6.1.2.1. Pump Down ...................................................................................................................................................................... 15
6.1.2.2. Fallback Pressure Setpoints .............................................................................................................................................. 15
