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RSMVQ2R Technical Guide
TROUBLESHOOTING
LED Diagnostics
Using RSMVQ2R LEDs To Verify
Operation
The RSMVQ2R is 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 9, this page
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 one 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.
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 - RLY4 -
These green LEDs will light up when the relays
are enabled and will stay lit as long as they are active.
RSMVQ2R Stepper Motor Valve LED
EXV-1 -
This yellow LED will blink to indicate communication to
the DMQ. If the LED is on solid, that indicates no communication
to the DMQ.
EXV-2 -
This yellow LED will blink to indicate communication to
the DMQ. If the LED is on solid, that indicates no communication
to the DMQ.
Figure 9: RSMVQ2R LED Locations
BINARY
INPUT
LEDs
EXV-1
LED
STATUS
ALARM
COMM
POWER
LEDs
RELAY
LEDs
ALARM
LED
EXV-2
LED
ALARM
UP
DOWN
ENTER
MENU
AAON P/N: ASM02652
+24
V
A
C
GND
RELA
Y
CONT
ACT
RA
TING IS 1
AMP
MAX @ 24
VA
C
CONDENSER 1
COMP 2 ENABLE
COMP 2 HI SPEED
ANALOG OUTPUTS
COMMON
RELAY OUTPUTS
LABEL P/N:
G068350
COND FAN 1
COND FAN 2
GND
24 VAC POWER ONLY
WARNING! POLARITY
MUST BE OBSERVED
OR THE CONTROLLER
WILL BE DAMAGED
CONDENSER 2
+5 V
DISCHARGE TEMP 1
COMP STAT 1
H 1
P
SATURATION TEMP 2
COMP STAT 2
GND
NOT USED
GND
NOT USED
GND
BINARY INPUTS
MODBUS
RSMVQ2R
www.aaon.com
HEAD
PRESSURE
SENSORS
DUAL
E-BUS
EXP VALVE 1
+5 V
H 2
P
GND
NOT USED
NOT USED
GND
NOT USED
EXP VALVE 2
R+
T-
SH
SHD
T-
R+
SHD
T-
R+
EXP VALVE 3
NOT
INSTALLED
EXP VALVE 4
NOT
INSTALLED
EACH EXP VALVE IS INDIVIDUALLY
ELECTRICALLY ISOLATED
NOT USED
Summary of Contents for RSMVQ2R
Page 1: ...RSMVQ2R Technical Guide ...
