ARTC-SVX005B-EN
43
•
An alarm that shuts down and locks out the entire
module.
DO11 Panel Heater / Fan (optional)
This is the digital output is used when temperature
control inside control panel is required (identical to
AI9).
Expansion IO Screen
This screen controls analog inputs and digital requests.
There is an LED for each digital output that shows its
state:
•
Green LED - Indicates the valve has reached the
respective position.
•
Gray LED - specified valve position hasn't been
reached
Expansion #1 (Primary Only)
AI1 – AI6
These inputs indicate the inlet or outlet temperatures
for each of the three heat exchangers: evaporator,
condenser, or source.
AI7, AI8 - Cool SP / Heat SP (optional)
his is the external cooling or heating set point used
when the cooling and heating set points are controlled
by the BAS as hard-wired analog input signals.
Another way to set cooling or heating set points is via
BAS communication.
All microprocessor Analog Inputs (AI) are actually
Universal Inputs (UI), the same as the microprocessor
controller UI. So any microprocessor UI can be re-
configured to be either analog input, digital input, or
analog output.
Expansion #2
DI1 – DI8
Indicates the status of the Discharge / Suction
refrigerant valves D1, D2, S1, S2.
Active Alarms Screen
Figure 22.
Active alarms for the chiller/heater
The active alarms screen lists all active (triggered) and
non-active alarms in tabular form. See following figure.
Information presented in this screen in tabular form
includes:
Select
This column indicates if the alarm is selected or
unselected for acknowledgment or resetting.
Action
This column brings up more details upon tapping.
“Action” applies for each module compressor alarms/
warnings such as Compressor Warning, Compressor
Failure, Compressor Lockout, and Compressor
CoreSense Failure.
Name
This column displays the descriptive title each alarm.
Status
This column displays the alarm state. There are four
possible states for any alarm:
•
TRIGGERED (ACTIVE) / NOT ACKNOWLEDGED
•
TRIGGERED (ACTIVE) / ACKNOWLEDGED
•
NOT TRIGGERED / NOT ACKNOWLEDGED
•
NOT TRIGGERED / ACKNOWLEDGED
Both active and non-active alarms can be
acknowledged. When a non-active alarm is
acknowledged, it can be reset, which immediately
removes it from the active alarms list.
When all non-active alarms have been acknowledged,
only active alarms will remain on the list.
State
This column displays the numeric value of each alarm.
An alarm is considered “Active” (Triggered) if “State”
= 1, meaning that it is still active in the PLC.
An alarm is considered “Not Active” (Not Triggered) if
“State” = 0, and it can be reset using Reset button.
