GESTRA LRG 16-40, Оригинальная инструкция по установке

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22
Wiring
– continued –
CAN Bus voltage supply
To guarantee the troublefree operation of a CAN bus system make sure that the voltage supply is of
sufficient magnitude.
Please use the follow table to check the voltage supply of your bus system.
Control devices
with voltage supply
Qty.
x
Power output per equipment
= Sum 1
x 6 W = W
Sensor, transmitter, control
units, operating & display
unit URB 1
Qty.
x
Power input per equipment
= Sum
x 3 W = W
Operating & display
unit URB 2
x 5 W = W
Sum 2 = W
If sum 2 exceeds sum 1 feed the CAN bus with 24 V DC from a separate stabilised safety power supply
unit (e. g. SITOP Smart 24 V 2.5 A).
The power supply unit must feature electrical isolation for protection against dangerous contact voltage.
To ensure safe electrical isolation the separating equipment must meet the requirements for double or
reinforced isolation as specified in DIN EN 50178 or DIN 61010-1 or DIN EN 60730-1 or DIN EN 60950.
The power supply unit must be provided with an overcurrent protective device according to
EN 61010-1.
The CAN bus supply must then not be connected to the control units (terminals 1 and 5).
Tools
n
Screwdriver for cross-recess head screws, size 1
n
Screwdriver for slotted screws, size 2.5, completely insulated acc. to VDE 0680-1
n
Open-end spanner A. F. 12 mm
n
Open-end spanner A. F. 18 (19) mm