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SECTION 36 - SOFTWARE ENHANCEMENTS
FORM 160.54-M1
ISSUE DATE: 10/25/2019
JOHNSON CONTROLS
JCI COMPANY CONFIDENTIAL
36
The INCR AMOUNT key was renamed MANUAL
INCREMENT. This key now only applies to MANU-
AL SPEED CONTROL MODE. It defines the amount
by which the manual raise and lower commands will
change the command frequency to the VSD in manual
speed control mode.
Adaptive Capacity Control Details Screen
(Modbus Configuration)
This screen is shown in
OptiView Control Panel – Op-
eration (Form 160.54-O1) FIGURE 36
shows this
screen in Modbus protocol configuration. The follow-
ing data boxes are added: ®
•
Temperature Differential (LCHLT – Setpoint)
–
Displays the difference between the LCLT and
the Leaving Chilled Liquid Temperature setpoint.
•
Command Frequency –
Displays the speed com-
mand being sent to the drive logic board in either
auto or manual speed control mode.
•
Surge Map Point Count –
Displays the total
number of data points contained in the surge map.
•
ACC Surge Count –
Increments when a surge
is detected while the drive is running at less than
maximum frequency.
The following LED indicators are added:
•
Speed Decrease Inhibit – Surge Map Point –
Illuminates when the ACC function in the mi-
croboard is unable to reduce speed due to a
mapped surge point. Otherwise, it is extinguished.
•
Mapping Inhibited –
Illuminates while the ACC
function in the microboard is not allowed to map
(i.e., not allowed to slow down as well) points
due to unstable leaving chilled liquid temperature,
manual speed control or current limit (chiller FLA
only). Otherwise, it is extinguished. The logic to
control this is the same as used for the VPT LED
(CR8) on the ACC board.
•
ACC Surge Detected –
Illuminates momentarily
when a surge is detected by the ACC function in
the microboard, while the drive is running at less
than maximum frequency.
•
Surge Avoidance Surge Detected –
Illuminates
momentarily when a surge is detected by the
Surge Protection feature. This feature only detects
surges that occur while the drive is running at
maximum frequency.
Adaptive Capacity Control Details Screen
(YORK Protocol)
The following Setpoint keys are removed from this
screen:
• Local Motor Current Limit
• Pulldown Demand Limit
• Pulldown Demand Time
The SURGE MAP navigation key has been added.
This key will move to the subscreen that displays the
surge map. Only appears at SERVICE (or higher) ac-
cess level.
The Manual Surge Point Key
When this key is pressed, a dialog box appears that
asks for a password. Once password 0 3 6 8 has been
entered and the ENTER key has been pressed, the pres-
ent operating condition is logged into the surge map as
a valid surge point. The chiller must be running to enter
the point.
This screen is shown in
OptiView Control Panel – Op-
eration (Form 160.54-O1)
FIGURE 35,
the ACC DE-
TAILS Screen in YORK Protocol configuration. The
following data boxes are added:
•
Temperature Differential (LCHLT – Setpoint)
–
Displays the difference between the Leav-
ing Chilled Liquid Temperature and the Leaving
Chilled Liquid Temperature setpoint.
•
Command Frequency –
It is only displayed in
Manual Speed Control Mode and it is the speed
command being sent from the microboard to the
ACC Board in Manual Speed Control Mode.
•
ACC Surge Count –
Count is provided by the
ACC Board and it increments when any surge is
detected by the ACC Board, whether running at
maximum or less than maximum frequency.
SI0201 - SOFTWARE ENHANCEMENTS (VER 19) EFFECTIVE OCTOBER 2008 (CONT'D)