Johnson Controls SABROE UniSAB III Engineering Manual page 320

Version no.
1.0.6.0
The F1
picture.
The key has got a new function. It now makes it possible to step back in the menus
and pictures.
In version 1.0.6.3 an error concerning dynamic SABCube pictures has been corrected.
After a power reset the long updating time in some pictures, e.g. the Motor picture,
could make UniSAB restart when the picture was operated for the first time.
Alarm and shutdown lists have been updated.
A new section 8.8 U Set configuration tool has been added. It presents the new U Set
configuration tool.
1.0.7.0 For SAB 120-355 screw compressors with frequency converter (VSD) the Forced
speed start-up function is now implemented. An alarm Forced speed active is issued
when this function is active. See subsection 6.4.1 Drive for description.
For SAB 120-355 screw compressors with frequency converter (VSD) it is now possi-
ble to change the capacity slide limit at which the VSD is increased in speed from mini-
mum speed. The default value is 98% and the limit can be adjusted between 90% and
100%. See subsection 6.4.1 Drive for description.
For SAB 120-355 screw compressors the factory setting for the Low oil circuit alarm
limit is raised from 1.7 to 2.7 bar. The Low oil circuit shutdown limit is raised from 2.0 to
3.0 bar.
For SAB 120-355 screw compressors the factory setting for the Low oil pressure alarm
limit is lowered from 2.0 to 1.5 bar. The Low oil pressure shutdown limit is lowered from
1.5 to 1.0 bar.
For all screw compressors the maximum setting for the High discharge pressure alarm
limit is raised from 22.0 to 24.0 bar. The High discharge pressure shutdown limit is
raised from 24.0 to 24.5 bar.
The old Stall screw compressor type SV24/26 can now be set up as a "Combo screw",
i.e. it is possible to select Rotatune = Yes for this type.
For SMC, TSMC, CMO and TCMO reciprocating compressors the Thermopump inter-
nal is now implemented as an internal oil cooling function. See subsection 6.4.5 Oil
system for description.
For Chiller - the default factory setting for the timer Oil return Open (no. 41) is changed
from 15 to 30 sec.
The two manual operation keys [CAP. UP] and [CAP. DOWN] are now also available in
the Setup/Configuration/Calibration/Position pictures, if Manual mode is chosen.
key has got a new function. It now jumps directly to the Favourites/Default
Description
Engineering manual - UniSAB III 1.10.8
320/346
Troubleshooting
001930 en 2021.06