Frick QUANTUM LX - Active LED; Analog Inputs; Enahanced Analog Board Input Configuration Table

S90-020 M FRICK
®
QUANTUM™ LX COMPRESSOR CONTROL PANEL
Page 20 MAINTENANCE
supply being fed from the Quantum™ LX power supply. If
the +5Vdc is present as stated earlier, then this LED will
illuminate if the on-board +24Vdc supply is functioning
properly.
Active LED
The Analog Boards (both styles) have an Active LED
indicator that blinks when the board’s software is running.
If the Active LED is not blinking, it could be an indication
that the internal program is not running. Try powering the
Quantum™ LX controller off, then back on to see if the
Active light starts blinking. If not, a new board may be
required.
Analog Inputs
An Analog Input is the portion of the hardware that allows
devices such as temperature sensors and pressure
transducers, to interface with the Quantum™ LX. The
software program within the Quantum™ LX is constantly
looking at these Input channels, via communications, and
based upon what the voltage or current level of the
channel is, will provide the necessary control for an
associated action. For instance, if the digital input for the
Oil Level Sensor is energized, and the Oil Separator
Temperature sensor signal causes the value to drop below
the setpoint, the Separator will determine that the Oil
Heater needs to be energized. (Digital Inputs are
discussed in the Digital Input section).
Analog inputs arrive at the board on connectors P4
through P10. Each of these connectors can receive two
channels (for a total of twenty-four).
Each of the twenty-four analog input channels is board
software configurable to select for the following type of
input signals:
Enahanced Analog Board Input Configuration Table
Channel ICTD 0-5Vdc 0-20mA
POT
(Potentiometer)
MC
50mA
(Motor
Current)
Comp Acl
(Compressor
Acceleration)
Mtr Acl
(Motor
Acceleration)
MtrB
RTD
(Motor
Bearing
RTD)
MtrS
RTD
(Motor
Stator
RTD)
1 * * *
2 * * *
3 * * *
4 * * *
5 * * *
6 * * *
7 * * *
8 * * *
9 * * *
10 * * *
11 * * *
12 * * *
13 * * *
14 * * * *
15 * * * *
16 * * * *
PhD 1 *
PhD 2 *
PhD 3 * *
PhD 4 * *
PhD 5 *
PhD 6 *
PhD 7 *
PhD 8
Note: Enahanced Analog Board 2 can utilize channels 17 through 24 for PhD if Analog Board 1 is of the old style. Refer to the
section on Software Configuration for specific information on the procedure to set these channels.