Digital Outputs - Johnson Controls Frick QUANTUM LX Manual

090-022 O (NOV 09)
Page 56
ACCESSING:
DESCRIPTION: This Use this screen to setup and control an
The graphic below illustrates one scenario in which an
analog Temperature input is used to drive a digital output.
When the temperature exceeds the
the output will energize. It will remain in this state until
the analog input falls below the
This state will persist until the input again exceeds the
When value. The resulting temperature control would
resemble the following sine wave:
76°
75°
°
74
73°
Output is
de-energized
72°
The bottom half of the screen shows the available Digital
Outputs along with their Device Source and I/O Channels.
A drop down menu is provided to select a control channel:
[Analog Channel] –

Capacity Slide Position

Volume Slide Position

Suction Pressure

Discharge Pressure

Compressor Oil Pressure

Main Oil Injection Pressure

Economizer Pressure
FRICK ® QUANTUM™ LX COMPRESSOR CONTROL PANEL
OPERATION - SERVICE
Auxiliaries - Digital Outputs
SETPOINTS –
Setpoints...
Auxiliaries...
Auxiliary Digital Output
On When
value of 75°,
Off When
value of 73°.
On
Output is
energized

Digital Outputs

using the signal from an Analog Input.

Filter Pressure

Intermediate Pressure

Balance Piston Pressure

System Discharge Pressure

Suction Temperature

Discharge Temperature

Compressor Oil Temperature

Oil Separator Temperature

Process/Brine Temperature Leaving

Process/Brine Temperature Entering

Motor Current

RPM

Auxiliary Analog 1 - 10

EZ Cool Feedback %

Auxiliary Analog 12 - 20

Manifold Pressure

Compressor Vibration – Suction

Compressor Vibration – Discharge

Motor Vibration – Shaft Side

Motor Vibration – Opposite Shaft Side

Motor Temperature – Shaft Side

Motor Temperature – Opposite Shaft Side

Motor Stator #1 - #3
[On/Off When] – When operating in the (>) mode, the
digital output will be de-energized when the analog
Off When
signal falls below the
off until the input rises above the
Similarly, when operating in the (<) mode, the digital
output will be de-energized when the input signal
exceeds the Off When value and re-energized when
the analog signal falls below
value, and will remain
On When
value.
On When
value.