ID Title Description Default Range Unit
mode following group failover
P218 Fault Reset Attempts
Set number of inverter fault
reset attempts
2 0 to 10 —
P219 Fault Reset Period Set fault reset attempts period 600 60 to 3600 secs
P220 Twin Maximum Pump Speed
Set maximum pump running
speed when operating in twin
pump mode
100 25 to 100 %
Table 4.19 Configuration—Pump Control (continued)
ID Title Description Default Range Unit
P301 Temperature Setpoint
Set required secondary
temperature setpoint
18.0 10.0 to 55.0 °C
P302 Control Mode
Select from Fixed Setpoint or
Fixed Setpoint with Dew Point
Offset
FSDO
FS
FSDO
—
P303 Dew Point Offset
Minimum offset of setpoint
from dew point temp.
3.0 1.0 to 5.0 °C
P304 Sec. Low Temp Diff.
Low temp alarm offset below
setpoint
2.0 1.0 to 10.0 °C
P305 Sec. High Temp Diff
High temp alarm offset above
setpoint
2.0 1.0 to 10.0 °C
P306 Sec. Temp Reset Hysteresis
Low/high temp. alarm reset
point
1.0 .0.5 to 5.0 °C
P307 PID – Control Period
Scan period for control valve
positioning
1 1 to 30 secs
P308 PID – Proportional Band Proportional band 12.0 1.0 to 25.0 °C
P309 PID – Integral Reset Integral reset time 18 0 to 999 secs
P310 PID – Derivative Derivative reset time 5 0 to 999 secs
P311 Demand/Actual Error
Cooling valve demand to
feedback error for alarm
10 0 to 50 %
P312 Valve Check Period
Scan period for cooling valve
position monitoring
15 1 to 120 mins
P313 Valve Runtime
Cooling valve motor run time
for control loop
40 10 to 80 secs
P314 Valve Minimum Position
Cooling valve minimum
position
0 0 TO 80 %
P315 Valve Maximum Position
Cooling valve maximum
position
100 40 to 100 %
Table 4.20 Configuration—Temperature Control
4 Operation Proprietary and Confidential ©2025 Vertiv Group Corp. 31
Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide
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