Zone
Zone
TROUBLESHOOTING
RSMD Technical Guide
22
RSM LED Diagnostics
Using RSM LEDs To Verify Operation
The RSMs are equipped with LEDs that can be used to verify
operation and perform troubleshooting. There are LEDs for
communication, operation modes, and diagnostic codes. See Figure
5, below for the LED locations. The LEDs associated with these
inputs and outputs allow you to see what is active without using a
voltmeter. The LEDs and their uses are as follows:
Diagnostic LEDs
STATUS - If the software is running, this LED should blink at a rate
of 1 blink per second.
ALARM (on board) - If the module does not receive communications
for more than 1 minute, this LED will light up, the relays will turn
off , and the Analog Outputs will go to 0 VDC.
ALARM (above LCD display) - This red LED will light up and stay
lit when there is an alarm present. The type of alarm will display on
the LCD display. The ALARM LED also blinks when the expansion
valve is initializing at startup.
COMM - Every time the module receives a valid E-BUS request
from the VCC-X / VCCX2 Controller, this LED will blink on and
then off , signifying that it received a valid request and responded.
POWER - This LED will light up to indicate that 24 VAC power has
been applied to the controller.
Binary Input LEDs
BIN1 - This green LED will light up when Compressor Status 1
contact is closed.
BIN2 - This green LED will light up when Compressor Status 2
switch is closed.
BIN3 - This green LED will light up when the Outside Coil
Temperature switch is closed.
BIN4 - This green LED will light up when the Emergency Shutdown
switch is closed.
Relay LEDs
RLY1 - RLY5 - These green LEDs will light up when the relays are
enabled and will stay lit as long as they are active.
Digital Compressor LEDs
COMP1 - This green LED will light up when Digital Compressor
1 is unloading.
COMP2 - This green LED will light up when Digital Compressor
2 is unloading.
Figure 5: RSMD LED Locations
10A250VAC ~
5A30VDC
SA
VDE
G5Q-1A4
OMRON
DC12V
CHINA
M
ENTER
UP
DOWN
ALARM
MENU
OE370-26-RSMD
RSM FOR DIGITAL
COMPRESSORS
AAON No.: V61520
+24 VAC
GND
RELAY CONTACT
RATING IS 1 AMP
MAX @ 24 VAC
CONDENSER 1
COMP 1
COMP 2
ANALOG OUTPUTS
REVERSING VALVE
COMMON
RELAY OUTPUT
TERMINALS
www.aaon.com
WattMaster Overlay
# 000072 Rev1CSW
CONDENSER 1
CONDENSER 2
GND
24 VAC
POWER ONLY
WARNING!
POLARITY
MUST BE
OBSERVED
OR THE
CONTROLLER
WILL BE
DAMAGED
CONDENSER 2
SUCTION
PRESSURE 1
SENSOR
HEAD
PRESSURE 1
SENSOR
TEMP
SENSORS
BINARY
INPUTS
+5 V
+5 V
COMP DIS TEMP 1
COMP STATUS 1
SP-1
HP-1
COMP DIS TEMP 2
COMP 2STATUS
GND
GND
OUTSIDE COIL TEMP / POWF
EMERGENCY SHUTDOWN
GND
LEAVING WATER TEMP
GND
SUCTION
PRESSURE 2
SENSOR
HEAD
PRESSURE 2
SENSOR
+5 V
+5 V
SP-2
HP-2
GND
GND
E-BUS
E-BUS
RSMD
BINARY
INPUT
LEDs
COMP-1
LED
STATUS
ALARM
COMM
POWER
LEDs
RELAY
LEDs
ALARM
LED
COMP-2
LED
To Next Page
Loading...
Need help?
General
