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203
FORM 160.54-M1
ISSUE DATE: 10/25/2019
JOHNSON CONTROLS
JCI COMPANY CONFIDENTIAL
22
SECTION 22 - REMOTE SETPOINTS
REMOTE OPERATING MODES
There are three different Remote operating Modes that
can be selected at the keypad: Analog Remote Mode,
Digital Remote Mode or ISN(BAS) Remote Mode.
The OptiView Control Center can receive a Remote
Current Limit and/or a Remote Leaving Chilled Liquid
Temperature setpoint via the following:
Analog Remote Mode
Analog Remote Mode has the following Analog Inputs:
• 0 to 10 VDC Analog Input
• 2 to 10 VDC Analog Input
• 0 to 20mA Analog Input
• 4 to 20mA Analog Input
When equipped with software version C.OPT.01.18.307
(or later), software filtering is applied to these inputs.
This stabilizes the remote setpoint values under electri-
cal noise conditions and when the inputs are unstable.
The Analog Inputs are connected to the microboard
and described
below. Microboard Program Jumpers JP23 and JP24
must be positioned appropriately to receive either a 0
to 10 VDC, 2 to 10 VDC, 0 to 20mA or a 4 to 20mA
signal. Refer to Microboard Program Jumpers and ex-
planation below for required configurations.
Digital Remote Mode
Digital Remote Mode has a Pulse Width Modulation
(PWM) Input.
The PWM inputs are in the form of a 1 to 11 second
re-lay contact closure that applies 115 VAC to the I/O
Board TB4-19 (Leaving Chilled Liquid Temp) and
TB4-20 (Remote Current Limit) for 1 to 11 seconds.
See
. The source of 115 VAC is
I/O Board TB4-1. The PWM input must be received at
a frequency of at least once every 30 minutes. If not re-
ceived within this time interval, the Program assumes
the remote de-vice is defective and defaults the Current
Limit setpoint to 100% and the Leaving Chilled Liquid
Temperature setpoint to the locally programmed Local
BASE value.
ISN(BAS) Remote Mode
ISN Remote Mode uses RS-232 serial port via E-Link
Gateway.
The Analog Inputs are connected to the microboard
and described
below. Microboard Program Jumpers JP23 and JP24
must be positioned appropriately to receive either a 0
to 10 VDC, 2 to 10 VDC, 0 to 20mA or a 4 to 20mA
signal. Refer to Microboard Program Jumpers and ex-
planation below for required configurations.
The PWM inputs are in the form of a 1 to 11 second re-
lay contact closure that applies 115 VAC to the I/O Board
TB4-19 (Leaving Chilled Liquid Temp) and TB4-20 (Re-
mote Current Limit) for 1 to 11 seconds. See
. The source of 115 VAC is I/O Board TB4-1.
The PWM input must be received at a frequency of at
least once every 30 minutes. If not received within this
time interval, the Program assumes the remote device is
defective and defaults the Current Limit setpoint to 100%
and the Leaving Chilled Liquid Temperature setpoint to
the locally programmed Local
BASE
value.
The microboard COM 4B RS-232 (J2) receives the
setpoints in serial data form from the E-Link Gateway
located inside the OptiView Control Center enclosure.
The E-Link Gateway receives setpoints from remote
external devices and transfers them to the microboard.
CURRENT LIMIT
Remote Current Limit setpoint with 0 to 10 VDC, 2 to
10 VDC, 0 to 20mA, 4 to 20mA or Pulse Width Mod-
ulation Signal
–
The Remote Current Limit setpoint
can be reset over the range of 100% to 30% Full Load
Amps (FLA) by supplying (by others) a 0 to 10 VDC,
2 to 10 VDC, 0 to 20mA, 4 to 20mA or 1 to 11 second
Pulse Width Modulated (PWM) signal to the OptiView
Control Center. The OptiView Control Center must be
configured appropriately to accept the desired signal
type as follows:
• The appropriate remote mode must be selected:
analog remote mode must be selected when using
a voltage or current signal input. Digital Remote
Mode must be selected when using a PWM input.