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© 2018 Emerson Climate Technologies, Inc.
AEX-XXXX
PRELIMINARY
AE8-1384 R6
Table 5 - DIP Switch Purpose
DIP Switch Number
On
Off
1 through 5
Modbus Module Address
6
Baud Rate = 9600
Baud Rate = 19200
7
Even Parity
No Parity
8
Network Mode
Stand Alone
9
1
TE*: NTC & PTC
TW*: PTC ONLY
10
Enable Short Cycle Protection
Disable Short Cycle Protection
1
Thermistor Configuration: TE* = PTC & NTC (3 wire connectors), TW* = PTC only (2 wire connectors)
Table 6 -
CoreSense™ Communications LED Flash Code Information
The flash code number corresponds to the number of LED flashes, followed by a pause, and then the flash code is repeated.
A lockout condition produces a red flash, followed by a pause, a solid red, a second pause, and then repeated.
Status
Fault Condition
Code Fault
Description
Code Reset
Description
Trouble Shooting
Information
Solid Green
Normal
Operation
Module is powered and
operation is normal
N/A
N/A
Solid Red
Module
Malfunction
Module has internal
fault
N/A
1) Reset module by removing power from T2-
T1
2) Replace module
Warning LED Flash
Green
Flash Code 1
Loss of
Communication
Module and master
controller have lost
communications with
each other for more
than 5 minutes
When
communications
are confirmed
1) Check the control wiring
2) Verify dipswitch 8 is
“on”
Green
Flash Code 2
Future Use
N/A
N/A
N/A
Green
Flash Code 3
Short Cycling
Run time of less than
3 minutes; number of
short
cycles exceeds 48 in
24 hours
< 48 short cycles in
24 hours
1) Check system charge and pressure control
setting
2) Adjust set-point of temperature controller
3) Install anti-short cycling control
Green
Flash Code 4
Open/
Shorted Scroll
Thermistor
Ω > 370K or Ω < 1K
5.1K < Ω < 370K
1) Check for poor connections at module and
thermistor fusite
2) Check continuity of thermistor wiring harness
Green
Flash Code 5
Future Use
N/A
N/A
N/A
