Daikin WDC Installation, Operation And Maintenance Manual page 48

Centrifugal chillers
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Figure 51: Settings View - Motor
Table 14: Motor Setpoints
Description
Nominal Capacity
Oil No Start Differential
Soft Load Enable
Initial Soft Load Limit
Soft Load Ramp Time
Show Motor Temps
Max Leaving Water Temp Rate
Min Leaving Water Temp Rate
Demand Limit Enable
Minimum Amps
Maximum Amps
VFD Enable
VFD Speed Offset
VFD Minimum Speed
VFD Speed
Lift
Protocol Starter
Ident Number Starter
Baud Rate Starter
IOM 1281-2 • CENTRIFUGAL WATER CHILLERS
Default
Range
100 tons
0-2000 tons
40.0 °F
30 TO 60 °F
On
Off, On
20%
10 TO 100%
5 min
1 TO 60 min
No
No, Yes
0.5 °F/min
0.1 to 5.0 °F/min
0.2 °F/min
0.1 to 5.0 °F/min
OFF
ON, OFF
10%
5 to 80%
100%
10 to 100%
Yes
Yes
10%
0 to 20%
55%
0 to 100%
10%
0 to 100%
90 °F
30 to 90 °F
Local, Remote,
Local
MODBUS, D3, MX3,
Iso-Mtr-T MX_M
1
0-200
1200, 2400, 48, 00,
19200
9600, 19200
PW
Comments
T
Sets nominal capacity rating of an individual compressor for staging decisions.
Compressor Start: Sets minimum delta between oil sump temp and evaporator
saturated temp. Oil Heat Control: Sets ON control point @ evaporator LWT +
M
Setpoint + 10F or Sets OFF control point @ evaporator LWT + Setpoint + 20F
M
M
Initial %RLA for soft load ramp up
M
Time period for up to 100% from limit
T
Setting for displaying motor temps on HMI screen
M
Sets LWT rate above which capacity increase is inhibited
M
Sets value below which an additional compressor can stage on.
ON: Limits %RLA to a value set by the Demand Limit analog input,
where: 4 mA = 70 %RLA
M
20 mA = 100 %RLA
OFF: The Demand Limit input is ignored.
M
Sets %RLA below which unloading is inhibited
Sets %RLA above which capacity increase is inhibited. Unloading is forced at 5%
M
above this value.
M
Sets if the motor is controlled by a VFD
M
M
Minimum that can be set is VFD Low Speed Limit
M
Sets speed portion of Speed/Lift ratio setpoint where Speed is at 0 Lift.
M
Sets lift portion of Speed/Lift ratio setpoint where Lift is at 100% Speed
T
Communication protocol with compressor starters
T
Identification numbers for starters
T
48
Operation
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