Hs.95: Monitored Functions - Bitzer CM-SW-01 Information Technique

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.

7.1 HS.95: monitored functions

Monitored functions
Low pressure
High pressure
Application limits
(Condensing temperature,
evaporation temperature)
Discharge gas temperat-
ure
Oil supply
Motor temperature
Rotation direction
Phase failure
Operating recognition with
FI operation
Tab. 2: State of delivery of CM-SW-01 with HS.95
ST-150-4
Time delay Warning
after com-
pressor start
--- ---
--- ---
120 s < 2 K within the
application lim-
its
--- > 95°C
15 s ---
--- ---
3 s ---
3 s ---
7 s ---
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.
Critical alarm Fault
--- < NV
CM-SW-01 locks out immedi-
ately.
--- > PS
CM-SW-01 locks out immedi-
ately.
> 2 K outside > 4 K outside the application lim-
the application its
limits
CM-SW-01 switches off immedi-
CM-SW-01 ately.
locks out after
30 s.
--- > 100°C
CM-SW-01 switches off immedi-
ately.
--- CM-SW-01 locks out immedi-
ately.
--- CM-SW-01 locks out immedi-
ately.
--- CM-SW-01 locks out immedi-
ately.
--- CM-SW-01 switches off immedi-
ately.
--- CM-SW-01 locks out immedi-
ately.
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