Requirements For Signal Cables Provided By The Customer - Honeywell TWM 9000 Quick Start Manual

ELECTRICAL CONNECTIONS
3

3.3.3 Requirements for signal cables provided by the customer

INFORMATION!
If the signal cable was not ordered, it is to be provided by the customer. The following
requirements regarding the electrical values of the signal cable must be observed:
Electrical safety
• To EN 60811 (Low Voltage Directive) or equivalent national regulations.
Capacitance of the insulated conductors
• Insulated conductor / insulated conductor < 50 pF/m
• Insulated conductor / shield < 150 pF/m
Insulation resistance
• R > 100 GΩ x km
iso
• U < 24 V
max
• I < 100 mA
max
Test voltages
• Insulated conductor / inner shield 500 V
• Insulated conductor / insulated conductor 1000 V
• Insulated conductor / outer shield 1000 V
Twisting of the insulated conductors
• At least 10 twists per meter, important for screening magnetic fields.
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TWM 9000
34-VF-25-53 iss.3 GLO Aug 10 US