AIRSYS UNICOOL 28V1B5 - Page 76

System Parameters and Default Values
76
Menu Screen
Option
Description
Default
Comp. & INV
Enable Comp. INV
Enable compressor inverter
Enable
INV Factory
Inverter driver manufacturer
EU
Device address
Driver address
1
New address
New driver address
0
Cmd. delay
Driver instruction delay time
20ms
Timeout
Driver instruction timeout
1000ms
Speed Cfg (rps)
Start speed
Compressor starting speed
30 rps
Additional configuration options are available depending on the inverter driver manufacturer (EU or Carel)
Table 5-8 Additional Inverter Settings (EU)
Menu Screen
Option
Description
Default
Inverter Setting
Keep speed
Speed to maintain during starting period
40 rps
Min. Lim. speed
Minimum speed limit
27 rps
Max. Lim. speed
Maximum speed limit
64 rps
Start Keep Time
Time to maintain “Keep speed” after start
195s
Speed Step Cfg
(rps/s)
Incre. Step
Acceleration rate
30 rps/s
Decre. Step
Deceleration rate
30 rps/s
Decre. Step. Ser
Maximum deceleration
90 rps/s
Inverter Setting
[EU]
Start pressure Diff.
Lim
Maximum pressure differential during startup
3.0 psi
Control rate
EEV control rate
1.2
Pre Open Time
EEV Pre Open Time
15s
Decrease Speed By
Current Limit
Decrease compressor speed when inverter is
overloaded by over current
Yes
Current
Over current value at which compressor
speed start to decrease
Depend on
compressor
Diff
Over current differential at which compressor
speed recovers
2.0A
Table 5-9 Additional Inverter Settings (Carel)