Technical information

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Technical Information
Date of last update: Oct-11
Ref: D7.8.4/1011/E
Application Engineering Europe
C
C
O
O
R
R
E
E
S
S
E
E
N
N
S
S
E
E
™
™
D
D
I
I
A
A
G
G
N
N
O
O
S
S
T
T
I
I
C
C
S
S
F
F
O
O
R
R
S
S
T
T
R
R
E
E
A
A
M
M
R
R
E
E
F
F
R
R
I
I
G
G
E
E
R
R
A
A
T
T
I
I
O
O
N
N
C
C
O
O
M
M
P
P
R
R
E
E
S
S
S
S
O
O
R
R
S
S
CoreSense™ Diagnostics for Stream Refrigeration Compressors ............................................................................... 1
1 Introduction .......................................................................................................................................................... 3
2 Specifications ........................................................................................................................................................ 3
3 Emerson CoreSense™ Diagnostics – Features ..................................................................................................... 3
3.1 “Jog” feature ................................................................................................................................................. 4
3.2 Crankcase heater (CCH) control.................................................................................................................... 4
3.3 Insufficient oil pressure protection .............................................................................................................. 5
3.4 Motor overheat protection .......................................................................................................................... 5
3.5 High discharge temperature protection ....................................................................................................... 5
3.6 Locked rotor protection ................................................................................................................................ 5
3.7 Missing phase protection ............................................................................................................................. 5
3.8 Low voltage protection ................................................................................................................................. 5
3.9 Voltage imbalance protection ...................................................................................................................... 6
3.10 Flash memory information ........................................................................................................................... 6
3.10.1 The following asset information will be saved in the flash memory (EEPROM); ................................. 6
3.10.2 Compressor running status information will be saved in the flash memory (EEPROM): ..................... 6
3.10.3 Compressor Operating Parameters ...................................................................................................... 6
3.11 Modbus
®
communication ............................................................................................................................. 6
3.12 Local and remote reset ................................................................................................................................. 6
3.13 Alarm history and running conditions .......................................................................................................... 7
3.14 Compressor status codes .............................................................................................................................. 7
3.15 LEDs on the module to display the failure alarms ........................................................................................ 7
4 Electrical connections ........................................................................................................................................... 9
4.1 System wiring diagram ................................................................................................................................. 9
4.2 Terminal box and current sensing transformer connections ..................................................................... 10
4.2.1 Installation of current sensing module ............................................................................................... 10
4.2.2 CoreSense™ Diagnostics with Υ/Δ motors ........................................................................................ 11