ST-150-4
55
Table information
The tables briefly describe the reaction of the com-
pressor module to a fault.
• "switch off" means: the compressor is brought to
standstill and automatically released afterwards to
be switched on.
• "lock out" means: the compressor is brought to
standstill and must be reset externally.
• "immediately" means: the status is changed without
time delay.
Cut-out pressures
• Factory setting
– high pressure side: maximum allowable pressure
(PS) according to name plate
– low pressure side: nominal value (NV) according
to compressor application limit
• The cut-out pressures can be adjusted individually
by the BEST SOFTWARE, Activating application lim-
its monitoring.
• Pressures beyond these name plate data must not
be entered.
7.1
HS.95: monitored functions
Monitored functions
Time delay
after com-
pressor start
Warning
Critical alarm
Fault
Low pressure
---
---
---
< NV
CM-SW-01 locks out immedi-
ately.
High pressure
---
---
---
> PS
CM-SW-01 locks out immedi-
ately.
Application limits
(Condensing temperature,
evaporation temperature)
120 s
< 2 K within the
application lim-
its
> 2 K outside
the application
limits
CM-SW-01
locks out after
30 s.
> 4 K outside the application lim-
its
CM-SW-01 switches off immedi-
ately.
Discharge gas temperat-
ure
---
> 95°C
---
> 100°C
CM-SW-01 switches off immedi-
ately.
Oil supply
15 s
---
---
CM-SW-01 locks out immedi-
ately.
Motor temperature
---
---
---
CM-SW-01 locks out immedi-
ately.
Rotation direction
3 s
---
---
CM-SW-01 locks out immedi-
ately.
Phase failure
3 s
---
---
CM-SW-01 switches off immedi-
ately.
Operating recognition with
FI operation
7 s
---
---
CM-SW-01 locks out immedi-
ately.
Tab. 2: State of delivery of CM-SW-01 with HS.95
