Firmware V1.41 V1
08.11.2022
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3 System design VS 3015 CT
The basic module of the pack controller for transcritical CO
2 ‾
systems consists of an analogue module and a
digital input/output module.
The controller has a modular design and can be extended with two SIOX extension modules:
The following expansion stages are possible:
VS 3015 CT Basic Module
4 NT / MP compressors
3 LT compressors
up to 12 fans via Modbus
VS 3015 CT Basic Module and
one SIOX extension module 1
8 NT / MP compressors
3 LT compressors
up to 12 fans via Modbus or 4 fans via relays
VS 3015 CT Basic Module and
one SIOX Ejector
A separate SIOX extension module is required to control ejectors. The control of the SIOX
ejector is independent of the expansion stage. The following combinations are possible:
Basic module and one SIOX Ejector for ejector operation
Basic module with SIOX 1 extension module to extend the range of functions and
a SIOX Ejector for ejector operation (complete design)
The device configuration and terminal assignment of the pack controller can be found in the chapter