Table of Contents
Advertisement
Table 6. The overview screens
Primary Overview 1 Screen
Module Indicators
The overview screen for each module contains a
wealth of controls and indicators specific to that
module:
Module En/Dis
Press this button to enable or disable the module. If the
module is disabled, it is excluded from the primary
controller compressor sequence.
Module Status
Possible states indicating the module's status include:
•
M M o o d d u u l l e e O O N N - The module is ready to run.
•
O O F F F F b b y y S S c c h h e e d d u u l l e e - The module operates according
to predefined schedule and is currently off as
scheduled.
•
O O F F F F b b y y D D i i g g i i t t a a l l I I n n p p u u t t - The module is turned off by
the opened state of microprocessor controller DI1
•
O O F F F F b b y y K K e e y y p p a a d d - The module is turned off by
module EN/DIS button.
•
O O F F F F b b y y A A l l a a r r m m - The module is locked out by one of
the major alarms.
•
O O F F F F b b y y P P r r i i m m a a r r y y - The module is switching between
control states primary, secondary, and stand-alone.
•
O O F F F F b b y y S S y y s s t t e e m m - The module is turned off by one
of the system off conditions.
•
M M a a n n M M o o d d e e - The module is in manual mode.
•
S S a a f f e e t t y y M M o o d d e e - This display indicates the module is
running in one of the Safety Modes.
Module Cntrl Status
Possible options for each module include:
•
Primary Module
ARTC-SVX005B-EN
Secondary Overview 2 Screen
The module is acting as the primary module and
performs temperature control function for both heating
and cooling loads. It also acts as a supervisor when
communicating with the secondary modules and
defines how many modules need to run compressors
in order to satisfy heating and cooling loads.
N N o o t t e e : : Primary Module is defined by its PLC IP address.
So in the chiller primary PLC IP address is always
192.168.1.11. All secondary IP addresses go from
192.168.1.12 to 192 to 192.168.1.20 which
amounts to nine secondary. Each IP address has
to be unique for all the chiller devices to
communicate properly including HMI which IP
address is 192.168.1.10.
Primary Status
This applies to the primary microprocessor controller
only. Possible options:
•
P P r r i i m m a a r r y y O O N N - All primary module conditions are
satisfied by this module.
•
W W a a i i t t i i n n g g ... ... - All primary module conditions are
satisfied and the module is counting down a delay
before attaining Primary ON status.
•
O O F F F F b b y y C C o o o o l l S S e e n n s s o o r r - The chiller/heater cooling
temperature sensor has failed.
•
O O F F F F b b y y H H e e a a t t S S e e n n s s o o r r - The chiller/heater heating
temperature sensor has failed.
•
O O F F F F b b y y N N o o S S e e c c o o n n d d a a r r i i e e s s - The primary
microprocessor controller cannot communicate
with any of the secondary modules.
•
O O F F F F b b y y E E x x p p I I O O F F a a u u l l t t - A failure occurred in the
primary microprocessor controller IO expansion
module which renders all system temperature
sensors failed. All primary status states 3 through 6
will cause all modules to run in the stand-alone
mode. These failing conditions are avoided in
normal primary and secondary operations.
O O p p e e r r a a t t i i n n g g P P r r o o c c e e d d u u r r e e s s
37
Advertisement
Table of Contents
