JOHNSON CONTROLS
92
FORM 160.84-OM1
ISSUE DATE: 9/21/2017
SECTION 3 - OPTIVIEW™ CONTROL CENTER FUNCTIONS AND NAVIGATION
MESSAGE DESCRIPTION
WARNING – SETPOINT
OVERRIDE
A blank BRAM battery-backed memory device (IC location U52 on Microboard) or a
failure of this device was detected during the initialization process that occurs when
power is applied to the control center. Due to this failure, any or all of the programmed
Setpoints could have been corrupted. Therefore, all Setpoints have been automati-
cally changed to their Default values. All Setpoints will have to be programmed to their
desired values. This message will clear when the WARNING RESET key is pressed in
OPERATOR (or higher) access mode.
WARNING – UPS – BATTERY
NOT CONNECTED
This is an auto reset warning. The minimum and maximum Battery Voltage that occurs
within each 10 second window is stored. At the end of each 10 second window, if the
difference between the min and max battery voltage is greater than 0.5 V, a counter is
increased. If the difference between them is less than 0.5 V, the counter is reset to 0.
This warning is set when the Battery Disconnected Counter >= 4 (The intent is for 4
consecutive 10 second windows to see battery voltage uctuations to set this fault)
It is released when the Battery Disconnected Counter is 0 for 60 continuous seconds.
WARNING – UPS – CHECK
BATTERY CONNECTION
This manual reset warning is set when Battery Voltage > 16.0 V. (Indicates only the UPS
output is connected to the battery leads). It is released when Battery Voltage < 16.0 V.
WARNING – UPS – LINE LOW
BATTERY VOLTAGE
This auto reset warning is set when all of the following are true:
• Control Voltage digital input is high (indicates line power is available)
• Battery Voltage < Line Low Battery Voltage Threshold
It releases when Battery Voltage > Line Low Battery Voltage Threshold + 0.1 V
WARNING – UPS – NOT
CHARGING
This auto reset warning is set when all of the following are true for 5 continuous sec-
onds:
• Control Voltage digital input is high (indicates line power is available)
• UPS Line / Charging digital input is low (indicates UPS not reporting in charge mode)
It releases when any of the following are true:
• Control Voltage digital input is low (indicates line power is lost)
• UPS Line / Charging digital input is high (UPS is reporting in charge mode)
WARNING – VSD –
INPUT VOLTAGE IMBALANCE
Line voltage imbalance shall be calculated, for every VSD communications cycle, as:
V
imb%
=
max (|V
ab
-V
avg
|,|V
bc
-V
avg
|,|V
a
-V
avg
|)
x 100%
V
avg
where V
ab
, V
bc
and V
ca
are line-to-line total rms voltages received from the drive, max is
the function which selects the largest of its arguments, and:
V
avg
=
|V
ab
|+|V
bc
|+|V
ca
|
3
If Vimb% exceeds 5% continuously for 45 seconds, the warning will be displayed. The
45 second timer shall reset and the warning shall clear if three consecutive imbalance
readings fall below the 5% threshold.
TABLE 10 - ROUTINE SHUTDOWN MESSAGES
MESSAGE DESCRIPTION
LOCAL STOP A local shutdown command has been received by pressing the Keypad Stop key.
REMOTE STOP
A shutdown command has been received from a remote device. Remote Stop com-
mands can be received in Digital Remote mode via I/O Board TB4-7/8 or in BAS (ISN)
(Integrated Systems Network) Remote mode via the SC-Equip Gateway serial commu-
nications. If the chiller is running when this occurs, the chiller performs a soft shutdown.
TABLE 9 - WARNING MESSAGES (CONT'D)
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