22
RSMV Technical Guide
TROUBLESHOOTING
RSMV LED Diagnostics
AAON P/N: ASM01686
+24
V
A
C
GND
RELAY CONTACT
RATING IS 1 AMP
MAX @ 24 VAC
CONDENSER
COMP 1
COMP 2
ANALOG OUTPUTS
COMMON
RELAY OUTPUTS
LABEL P/N:
G042020
MOD COMP SIG
CONDENSER FAN SIG
GND
24 VAC POWER ONLY
WARNING! POLARITY
MUST BE OBSERVED
OR THE CONTROLLER
WILL BE DAMAGED
NOT USED
+5 V
+5 V
COIL TEMP 1
COMP STATUS 1
SP
HP
COIL TEMP 2
COMP STATUS 2
GND
GND
NOT USED
NOT USED
GND
TEMP 3
GND
COIL TEMP SENSORS
BINARY INPUTS
E-BUS
RSM FOR VFD COMPRESSORS
www.aaon.com
SUCTION PRESSURE SENSOR
HEAD PRESSURE SENSOR
E-BUS
EXPANSION
VALVE 1
EXPANSION
VALVE 2
WHITE
BLACK
RED
GREEN
WHITE
BLACK
RED
GREEN
ALARM
UP
DOWN
ENTER
MENU
Using RSMV LEDs to Verify Operation
The RSMVs 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 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.
Relay LEDs
•
RLY1
-
RLY4
- These green LEDs will light up when the
relays are enabled and will stay lit as long as they are active.
RSMV Stepper Motor Valve LEDs
•
EXV-1
- This green LED will light up when Expansion
Valve 1 is modulating.
•
EXV-2
- This green LED will light up when Expansion
Valve 2 is modulating.
Figure 5: RSMV LED Locations
Summary of Contents for RSMV ASM01686
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Page 31: ...31 RSMV Technical Guide NOTES ...
