KT-230-1
3
1
Introduction
The CM-RC-01 compressor control module integrates
the entire electronic periphery of the compressor:
The CM-RC-01 monitors the essential operating para-
meters of the reciprocating compressor: motor and dis-
charge gas temperature, oil supply and application lim-
its. It protects the compressor from operation under crit-
ical conditions. The module provides virtually stepless
control of the compressor depending on the capacity
requirements of a superior system controller. It controls
the capacity regulators, the compressor cooling, the oil
heater and, if necessary, the start unloading and
provides the voltage supply of the associated compon-
ents. Moreover, it controls the activation and deactiva-
tion of the motor contactors during the start. Additional
time relays are not required.
For delivery, the compressor control module can op-
tionally be pre-installed on the reciprocating com-
pressors 4VES-6Y to 8FE-70(Y). For this, several
equipment versions are possible.
During the operation, numerous operating data of the
compressor can be tracked using the BEST Software,
for example, the position in the application limits dia-
gram. These data are recorded and allow the system
operation to be diagnosed. 4 coloured LEDs indicate
the operating condition of the compressor control mod-
ule.
This Technical Information describes the control and
monitoring functions, the electrical connection of the
compressor control module and the communication
with the BEST Software.
2
Safety
Compressors and compressor control module have
been built in accordance with state-of-the-art methods
and current regulations. Particular importance was
placed on user safety.
The notes given in the Operating Instructions KB-104
must be followed in addition to this Technical Informa-
tion.
Always keep the Operating Instructions KB-104 and
this Technical Information in the vicinity of the refrigera-
tion system during the whole lifetime of the com-
pressor!
Also observe the following technical documents
Number
Topic
KT-101
CRII: Capacity control
KT-110
Start unloading
KT-130
CIC system
KT-140
Additional cooling
KT-150
Oil heater
KT-170
Oil pressure monitoring
DT-300
OLC-D1: opto-electronic oil level monit-
oring
KG-230
Programming and control
2.1
Authorized staff
All work done on the compressors, the refrigeration
systems and their electronic accessories may only be
performed by qualified and authorized personnel who
have been trained and instructed accordingly. The local
regulations and guidelines will apply with respect to the
qualification and expertise of the specialists.
2.2
Residual risks
Compressors and electronic accessories may present
unavoidable residual risks. This is why any person
working on this device must carefully read this docu-
ment!
The following regulations shall apply:
• the relevant safety regulations and standards (e.g.
EN 378, EN 60204 and EN 60335),
• generally accepted safety rules,
• EU directives,
• national regulations.
2.3
Safety references
are instructions intended to prevent hazards. Safety ref-
erences must be stringently observed!
!
!
NOTICE
Instructions on preventing possible damage to
equipment.
CAUTION
Instructions on preventing a possible minor haz-
ard to persons.
WARNING
Instructions on preventing a possible severe
hazard to persons.
