4
Figure 1: Operator’s interface
General information
This regulation assembly is composed of 6 electronic
modules which have each their own 115V power
supply and communicate with each other via a serial
link. Each module has a set of functions which are
associated to make the unit regulation.
Each module has the following name linked to its
functions.
- MCSP (Motor Compressor Start and Protection):
safety, protection and control of the helical-rotary
compressor as well as all associated components.
- CPM (Chiller Protection and Management): safety,
protection, and control of the chiller.
- EXV (Electronic Expansion Valve): control of both
electrical expansion valves.
- CSR (Communication and Setpoint Reset): control of
the serial communication, unit external setpoints, and
ice-making mode (optional module).
- Local CLD (Local Clear Language Display): operator’s
interface located in the unit: front panel (software
version and number displayed at power-up).
- Remote LCD (Remote Clear Language Display):
operator’s interface located up to 1500 m from the
unit at the operator’s, and which can communicate
with up to four units of the same type (optional
module).
- TCI IV, IPCB (Tracer Communication Interface 4,
Inter-Processor Communication Buffer): protection of
the unit internal communication bus from the external
interferences existing in the unit (optional module,
compulsory when using a remote CLD, and which
must be factory-mounted).
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