Commands - Johnson Controls FRICK QUANTUM HD Setup

Compressor control panel communications setup
Hide thumbs Also See for FRICK QUANTUM HD:
Table of Contents

Advertisement

Frick®
AB
Address
Address
8910
N119:10
8911
N119:11
8912
N119:12
8913
N119:13
8914
N119:14
8915
N119:15
8916
N119:16
8917
N119:17
8918
N119:18
8919
N119:19
8920
N119:20
8921
N119:21
8922
N119:22
8923
N119:23
8924
N119:24
GENERAL NOTES:
Command Values need tenths field added. For example, to start the
compressor, the table above states that 1 = Start. However, being
that one decimal place is assumed, a value of 10 actually needs to
be sent.
SPECIFIC NOTES:
Note 1: The compressor must be in remote communications to
accept the start and stop commands that are sent through serial
communications, and the Capacity Mode must be in remote com-
munications to accept load and unload commands that are sent.
Note 2: To read the proper Temperature/Pressure units, use Frick
address 4566. To change (write to) the Temperature/Pressure units,
use Frick
address 8920.
®
Note 3: Mode must already be enabled.
Note 4: The value passed with this command is the position (per-
centage) to which the control will attempt to set the Slide Valve.
The control will automatically load and/or unload the Slide Valve
until it is within a deadband (+/- 0.5%) of the target.
Conditions:
the compressor must be running
the Capacity Mode must be Remote Comms
if the compressor is Variable Speed, the Slide Valve will
not go below the Variable Speed Minimum Slide Valve
QUANTUM™ HD COMPRESSOR CONTROL PANEL
COMMUNICATIONS SETUP
Modbus
Read/
Address
Write
48911
W
Remote – Start
48912
W
Remote – Stop
48913
W
Remote - Load Slide Valve
48914
W
Remote - Unload Slide Valve
48915
W
Remote - RDB Capacity
48916
W
Remote - Compressor Mode
48917
W
Remote - Capacity Mode
48918
W
Remote - Clear Alarms
48919
W
Remote - Clear Recycle Delay
48920
W
Remote - Sequencing Mode
48921
W
Remote - Communication Units
48922
W
Remote - Regulation Mode
48923
W
Remote – Set Slide Valve Position
48924
W
Remote – Set Drive Speed
48925
W
Remote – Set Total Capacity

COMMANDS:

Description of Data
This command is reset by a Remote Load or Remote Unload com-
mand. Writing to this value too often will cause the Slide Valve to
load and unload excessively. Only write to this value when the Slide
Valve needs to move from its current position. Typically this should
not be more than once every 30 seconds.
Note 5: The value passed with this command is the speed (percent-
age) to which the control will attempt to set the Drive.
Conditions:
®
This command is reset by a Remote Load or Remote Unload com-
mand
Note 6: This command is actually a combination the previous two
(Remote – Set Slide Valve Position and Remote – Set Drive Speed),
and is for the convenience of the PLC programmer. A value of X
from 0 to 100 will set the Slide Valve Position to X% and the Drive
Speed to 0% (or the allowable minimum). A value of X from 100 to
200 will set the Slide Valve to 100% and the Drive Speed to (X –
100)%. See notes 4 and 5 for additional requirements.
Value Codes
1 = Start
1 = Stop
0 = Turn off
1 – 15 = Load x seconds
0 = Turn off
1 – 15 = Unload x seconds
25, 50, 75, 100 (represents capacity %)
0 = Manual
1 = Auto
2 = Remote -- Communications
3 = Remote -- I/O
5 = Remote -- Sequencing
6 = Manual -- Browser
1 = Auto
2 = Remote -- Communications
3 = Remote -- I/O
4 = Remote -- 4-20ma
5 = Remote – Sequencing
6 = Manual -- Browser
1 = Clear Alarms
1 = Clear Recycle Delay
0 = Disable
1 = Enable
0 = C ° / PSIA
1 = Panel Units
0 = Regulation Mode 1
1 = Regulation Mode 2
2 = Regulation Mode 3
3 = Regulation Mode 4
0 – 100%
0 – 100%
0 - 200
setpoint
the compressor must be Variable Speed
the compressor must be running
the Capacity Mode must be Remote Comms
the Drive will not go below the Drive Speed Minimum
setpoint
090.040-CS (JAN 14)
Page 95
See Note 1
See Note 2
See Note 3
See Note 4
See Note 5
See Note 6

Advertisement

Table of Contents
loading

Table of Contents