ABB DCP10 programming controller
2.1 About this Chapter
The way you install your system has more influence on its functionality, accuracy and reliability
than you might think. The more accurate the installation, the better the measurement system. By
following the instructions in this chapter, you will fulfill the most important requirements for
proper mechanical and electrical installation.
The equipment is a precision instrument which, although intended for severe operating
conditions, must be handled with care.
2.2 Safety Instructions
Read and follow the safety instructions given in Chapter 1 , before starting any installation
work. However, local statutory regulations, if stricter, are to take precedence.
2.3 Mounting the Load Cells
Installation requirements and mounting instructions are given in:
• Appendix B PFCL 301E - Designing the Load Cell Installation
• Appendix C PFTL 301E - Designing the Load Cell Installation
• Appendix D PFRL 101 - Designing the Load Cell Installation
• Appendix E PFTL 101 - Designing the Load Cell Installation
• Appendix F PFCL 201 - Designing the Load Cell Installation
• Appendix G PFTL 201 - Designing the Load Cell Installation
2.4 Installing the Electronic Unit
2.4.1 Selecting and Routing the Cabling
2.4.1.1 Recommended Cabling
The cabling between the load cells and the electronic unit and electrical connections must be
carefully carried out in accordance with connection diagram 3BSE028140D0065 (See the
appendix for your type of load cell) or according to order-specific documentation.
Figure 2-1. Recommended Cabling
n × 0.5 mm2
+ screen
To control system
Mains supply
3 × 1.5 mm2
Junction Box
Load cell signals
2 × 2 × 0.5 mm2 + screen
Load cell excitation
2 × 2.5 mm2
4 × 1.0 mm2 + screen
max. 50 m

The maximum permitted cable resistance in the excitation circuit is shown in Table 2-1.
Before commissioning, check cable resistance in the load cell excitation circuit.
• Solid conductors should not be connected to terminals. Pins should not be crimped to
stranded cores.
• The cable from the load cell must be a robust four core cable, see Figure 2-2.
Diagonal pairs must be used for the signal circuits and excitation circuits.
Figure 2-2. Core Arrangement in Load Cell Cable
• Between the junction box and the tension electronics, signal and excitation must be routed
in separate cables. For example: a 2 × 2.5 mm2 cable for the excitation and a shielded
2 × 2 × 0.5 mm2 cable with twisted pair cores for the load cell signals.
• Cable for synchronization of two of more tension electronics must be screened or a twistedpair.
• The signal cable between the tension electronics and instruments, or process equipment,
must be a screened 0.5 mm2 cable.
• Cable screens must be connected to the copper earth bar. The screen connection maximum
length is 50 mm.
• The protective earth conductor of the incoming mains supply must be connected to the
copper earth bar in the cubicle.
Table 2-1. Maximum Permitted Cable Resistance
Load cell Max. permitted cable resistance
PFCL 301E 5
PFTL 301E 5
PFRL 101 5
PFTL 101 5
PFCL201 5
PFTL 201 5
Signal Load cell excitation