Bitzer CM-SW-01 User Manual

10 SG-150-1
There are nine zones in the application limit as shown on the figure below.
Zone zero (the green-shaded area) is the normal, safe operation area within the application limits.
A warning and a fault will be given if the warning level or fault level is reached.
Please also see envelope faults ‘30-*’ in section 9 Alarm system.
After a stop due to fault limit, the fault can be reset when the compressor is stopped. If timed resets are
enabled, the CM-SW-01 will perform a timed reset otherwise an external reset is required. The CM-SW-01
will start the compressor again if the start command is active or when it is applied again.
Please observe:
There is no Application limits monitoring the first period after start of the compressor.
The period varies for the compressor type, can be up to 120 s.
Envelope status = 2 – Start up
Section 10.4.2 Status – compressor lists two parameters that relate to the application envelope:
 Envelope Status lists the status of the compressor and if there should be warnings related to the
envelope:
Envelope status 4 – warning means the operating point of the compressor is between the warning
limit and the critical limit.
Envelope status 5 – critical means the operating point of the compressor is between the critical limit
and the fault limit and is only allowed to be there for 30 seconds from this warning became active.
Envelope status 6 – fault means the compressor is stopped since the operating point of the
compressor has been outside the critical limit for more than 30 seconds or has exceeded the fault
limit
 Envelope Zone shows in which zone the compressors operating point is right now or if a fault is
active, in which zone the operating point was when the fault was set.
The zones are listed above.
The zone is zero if the operating point is within the warning limit and no envelope faults are active.
6.SH2.SL
1.SLDL
3.SLDH
4.DH
5.SHDH
7.SHDL
8.DL
Evaporating temperature t
0
(SST) [°C]
Condensing temperature t
c
(SDT)[°C]
0: Ok
Zone number, description and alarm number:
Zone 1: SST Low, SDT Low 3001
Zone 2: SST Low 3002
Zone 3: SST Low, SDT High 3003
Zone 4: SDT High 3004
Zone 5: SST High & SDT High 3005
Zone 6: SST High 3006
Zone 7: SST High & SDT Low 3007
Zone 8: SDT Low 3008
Zone 0: Normal operation within application
limit and no alarms
t
0
(SST) = Evaporating temperature
t
c
(SDT) = Condensing temperature

Bitzer CM-SW-01 Specifications

General

Brand	Bitzer
Model	CM-SW-01
Category	Control Unit
Language	English