SIEMENS
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Siemens D 31 N · March 2016
SINAMICS G120 standard inverters
0.37 kW to 250 kW (0.5 hp to 400 hp)
Control Units
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Overview
CU230P-2 Control Units
CU230P-2 PN Control Unit
The Control Unit performs closed-loop control functions for the
inverter.
The CU230P-2 Control Units are designed for drives with inte-
grated technological functions for pump, fan and compressor
applications.
The I/O interface, the fieldbus interfaces and the additional soft-
ware functions optimally support these applications. The inte-
gration of technological functions is a significant differentiating
feature to the other Control Units of the SINAMICS G120 drive
family.
The CU230P-2 Control Units can be operated with the following
Power Modules:
• PM230
• PM240-2
• PM240
• PM250
Note:
The CU230P-2 is the Control Unit for SINAMICS G120P and
SINAMICS G120P Cabinet for pumps, fans and compressors.
Please refer to Catalog D 35 for further information.
Note:
Shield plates and shield connection kits are available. These can
be used in the wiring installation for the Control Units and Power
Modules to ensure that it complies with EMC guidelines.
For more information about shield connection kits and shield
plates for Control Units and Power Modules, please refer to
section "Supplementary system components".
Typical, integrated HVAC/HLK functions
•
Linear and square torque characteristic for fluid flow and
positive displacement machines
•
ECO mode for additional energy saving in V/f control mode
•
2 analog inputs (current/voltage can be selected) to directly
connect pressure/level sensors
•
2 additional analog inputs to connect Pt1000/LG-Ni1000
temperature sensors
•
Direct control of valves and flaps using two 230 V AC relays
•
Automatic restart
•
Flying restart
•
Skip frequencies
•
Hibernation mode
•
Load check function to monitor belts and flow
•
Cascade connection
•
4 integrated PID controllers (e.g. for temperature, pressure,
air quality, level)
•
Multi-zone controller
•
Essential service mode
•
Real time clock with three time generators
IOP wizards for special applications
•
Pumps: Positive displacement (constant load torque) and
centrifugal pumps (square load torque) with and without
PID controller
•
Fans: Radial and axial fans (square load torque) with and
without PID controller
•
Compressors: Positive displacement (constant load torque)
and fluid flow machines (square load torque) with and without
PID controller
© Siemens AG 2016