Johnson Controls YORK OPTIVIEW CONTROL CENTER, Operation Manual

Page: 45 / 142

JOHNSON CONTROLS
45
SECTION 2 - OPTIVIEW OPERATION
FORM 160.10-O1
ISSUE DATE: 4/27/2018
2
Pulldown Demand Time Left (Not Shown)
Displays the time remaining in the programmed
pulldown period. This is only displayed if there is time
remaining.
PROGRAMMABLE
Local Motor Current Limit
Access Level Required: OPERATOR
Allows the maximum allowed motor current (as a
percentage of FLA) to be adjusted. When the motor
current reaches this value, the pre-rotation vanes will
not open further. If the motor current rises above this
value, the pre-rotation vanes will close to reduce cur-
rent to this setpoint. This value is adjustable from 30 to
100%, with 100% as the default setting.
Pulldown Demand Limit
Access Level Required: OPERATOR
This setpoint limits the motor current (programmed as
a percentage of FLA) during the specified pulldown
demand time. This value will override the motor cur-
rent limit value during this time period. This function is
OVERVIEW
This screen displays all information pertaining to an
Electromechanical Starter, which controls the chiller
compressor motor.
DISPLAY ONLY
Motor Run (LED)
Illuminates when the digital output from the control
center is commanding the compressor motor to “RUN”.
Motor Current % Full Load Amps
Displays the motor current as a percentage of the Full
Load Amps (FLA) value. This data is provided by the
CM-2 board.
Current Limit Setpoint
Displays the current limit setpoint as programmed by
the operator. This value could come from a 0-20mA,
4-20mA, 0-10VDC or 2-10VDC input in analog re-
mote mode, PWM signal in digital remote mode, Mi-
croGateway interface in ISN (Integrated Systems Net-
work) mode, or a locally programmed value.
ELECTROMECHANICAL STARTER SCREEN
LD26954
FIGURE 15 - E-M STARTER SCREEN