Table of Contents
Advertisement
Neptune DWC RM100 in-rack Coolant Distribution Unit
Configuration – Temperature Control
ID
Title
P301
Temperature Setpoint
P302
Control Mode
P303
Dewpoint Offset
P304
Ambient Offset
P305
Sec. Low Temp Diff.
P306
Sec. High Temp Diff
P307
Sec. Temp Reset Hysteresis
P308
Sec. High Temp Setpoint DW
P309
PID – Control Period
P310
PID – Proportional Band
P311
PID – Integral Reset
P312
PID – Derivative
P313
Demand/Actual Error
P314
Valve Check Period
P315
Valve Runtime
P316
Max Cooling Mode Temp
Setpoint
Configuration – Primary
ID
Title
P401
Pri. Flow Delay
P402
Pri. Low Temp Setpoint
P403
Pri. High Temp Setpoint
P404
Pri. Temp Reset Hysteresis
Configuration – Filter
ID
Title
P504
Sec. Filter Dirty Setpoint
P505
Sec. Filter Dirty Hysteresis
P506
Sec. Filter Dirty Delay Period
Configuration – Leak Detection
ID
Title
P601
Leak Detection Operation -
Internal
P602
Internal Threshold
P603
Internal Delay Period
P604
Leak Detection Operation –
Primary External
P607
Leak Detection Operation –
Secondary External
Configuration – Sensors
ID
Title
P701
Secondary T2 Temperature
Differential
P702
Secondary T2 Period
P703
PS1 Scaling
CDU Operating & Maintenance Guide
Description
Set required Secondary temperature setpoint
Select from Fixed Setpoint or Fixed Setpoint
with Dewpoint Override
Minimum offset of setpoint from dewpoint
temp.
Minimum offset of setpoint from ambient temp.
Low temp alarm offset below setpoint
High temp alarm offset above setpoint
Low/High temp. alarm reset point
High temp alarm offset above setpoint when
dewpoint or ambient tracking
Scan period for control valve positioning
Proportional band
Integral reset time
Derivative reset time
Control valve demand to feedback error for
alarm
Scan period for control valve position
monitoring
Control valve motor run time for control loop
The temperature setpoint used when operating
in Max Cooling Mode
Description
Time delay prior to low flow alarm
Low temp alarm threshold
High temp alarm threshold
Low/High alarm reset from threshold
Description
Differential pressure alarm threshold for filter
dirty
Alarm reset from threshold
Time delay prior to alarm
Description
Alarm only, or shutdown & alarm
Set sensitivity of leak tape
Time delay prior to alarm
Alarm only, or shutdown & alarm
Alarm only, or shutdown & alarm
Description
Alarm threshold T2a/b/c temperature differential
Time delay before T2a/b/c differential alarm
Set measurement range. 0 = 0 to 30bar, 1 = 0
to 15bar, 2 = -1 to 8 bar.
17
Page
Default
Range
Unit
18.0
10.0 to
°C
55.0
FSDO
FS, FSDO
-
3.0
1.0 to 5.0
°C
3.0
-10 to 10
°C
2.0
1.0 to 10.0
°C
2.0
1.0 to 10.0
°C
1.0
0.5 to 5.0
°C
20.0
15.0 to
°C
25.0
1
1 to 30
secs
12.0
1.0 to 25.0
°C
18
0 to 999
secs
5
0 to 999
secs
10
0 to 50
%
15
1 to 120
mins
40
10 to 180
secs
18.0
10.0 to
°C
55.0
Default
Range
Unit
15
1 to 120
mins
4
2 to 40
°C
11
6 to 60
°C
1
0.5 to 5.0
°C
Default
Range
Unit
0.2
0.2 to 1.0
Bar
0.1
0.1 to 0.5
Bar
60
5 to 7200
secs
Default
Range
Unit
Alarm
Alarm or
-
Alarm+S/D
50
1 to 85
kohms
30
5 to 60
secs
Alarm
Alarm or
-
Alarm+S/D
Alarm
Alarm or
-
Alarm+S/D
Default
Range
Unit
1
0.1 to 10
°C
30
0 to 120
secs
2
0 to 2
-
Advertisement
Table of Contents
