Table 20. TechView™: Status View: MOTOR
Chiller Motor information, then AFD information as shown: Use
down arrow to scroll to AFD items
AFD Output Power KW
Winding Temp 1 F/C
Winding Temp 2 F/C
Winding Temp 3 F/C
AFD Transistor Temperature F/C
AFD Speed RPM
AFD Frequency Hz
AFD Frequency Command Hz
AF Boundary Press
ure Coefficien
t X.XX
AF Pressure Coefficient X.XX
AF Re-Optimization Time Remaining Hrs/Mins
AFD DC Bus Voltage Vdc
AFD Last Diagnostic Code (decimal) number
Table 21. TechView™: Setpoint View: Starter Tab
(for CH530 Main Processor Control Algorithm settings)
Description Min Max Factory Default Units
AFD Re-Optimization Timer 1 255 12 Hours
AFD Re-Optimization Sensitivity 0 100 10% Percent
AF Boundary Pressure Coeffi
cient Y Intercept 0.01 2.00 0.40 N/A
AF Boundary Pressure Coefficient Y In
tercept Max - Cprs 0.01 2.00 2.00 N/A
ADF Maximum Frequency 0 60 60 Hertz (Hz)
AFD Minimum Frequency 0 60 38 Hertz (Hz)
Notes: Use
onl
y Factory Defaults. Defaults other than above may effect chiller reliability.
1. AF Re-optimization Timer - The re-optim
ization timer is a time based parameter for determining when to re-optimize
the surge boundary. This timer runs only when the compressor is running and gets reset when a surge condition occurs
or the compressor is shut down.
2. AF Boundary PC Y-Intercept - T
he Bo
undary Pressure Coefficient (BPC) Y-intercept value is used to adjust the
magnitude of the BPC. This value is unique because in can be changed by the user as well as internally by the control
algorithm. The BPC Y-intercept is adjustable from 0.01 to 2.0 in increments of 0.01
3. AF Boundary PC Y-Intercept - Maximum The
Boundary Pressu
re Coefficient (BPC) Y-intercept is never allowed to
exceed a maximum value. This value is a manual way to control the aggressiveness of the efficiency optimizing
procedure.
For example, as this value is lowered the probability of encountering a surge decreases but so does the potential
ef
fic
iency improvements at a given operating condition. The Boundary Pressure Coefficient (BPC) Y-intercept maximum is
adjustable from 0.001 to 2.0 in increments of 0.01.
4. AF Re-optimization Sensitivity - E
very 30 minute
s the optimizing algorithm will compare the current value of the inlet
guide vane position to the value that was stored after the last re-optimization. If the difference is greater than the AF Re
optimization Sensitivity setting, re-optimization will occur. This value is adjustable from 0 to 100%, where 0 would
guarantee re-optimization every 30 minutes and 100% would guarantee no re-optimization.
Table 22. TechView™: Manual Override View
(TechView CH530 Main Processor Manual Control
Oil Pump Control
Also turns on AFD coolant pump)
Auto Manual Monitor Values
Oil Tank Pressure
Oil Pump Discharge Pressure
Oil Differential pressure
Oil Pump OVerride Time Remaining
Manual Control of Oil/Coolant Pump will
ti
me out after 10 min
Inlet Guide Vanes (IGV) and AFD
Contro
l
Auto Manual Targets:
XX% steps
XX Hertz
IGV Position first Stage (%)
IGV Position First Stage (Steps)
AFD Speed:
AFD Frequency
Upon selection of Manual, used can enter
i
ndividually target for vanes position and,
or, AFD Speed commands
XX Hertz
Xxxx Amps
Service Interface
44 AFDK-SVU01C-EN
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