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110
System Manual – MOVITRAC® 07
Electronics cables and signal generation
Project Planning
•
Several motors can be connected jointly to one output filter when multiple motors are
operated on one inverter. The total value of the rated motor currents must not exceed
the rated throughput current of the output filter.
•
It is acceptable for two identical output filters to be connected in parallel to one invert-
er output in order to double the rated through current. To do this, connect all connec-
tions with the same name to the output filters in parallel.
•
Output filter connection V5 (with HF...-503) or 7 (with HF...-403) must not be connect-
ed when the inverter is operated with f
PWM
= 4 or 8 kHz.
5.16
Electronics cables and signal generation
Cable type
The electronics terminals are suitable for cross sections up to 1.5 mm
2
(AWG16) without
conductor end sleeves and up to 1.0 mm
2
(AWG17) with conductor end sleeves.
Use shielded cables as standard. Ground the shield at both ends. Route electronics ca-
bles separately from power cables and contactor control cables or braking resistor ca-
bles.
0 V cables
Never connect 0 V cables GND for generating signals. The 0 V cables of several elec-
trical units which are connected together should not be looped from unit to unit, but rath-
er wired up in a star configuration. This means:
•
Install the units in adjacent switch cabinet compartments rather than distributing
them widely.
•
Lay the 0 V cables with 1 mm
2
(AWG17) cross section from a central point to each
individual unit by the shortest possible route.
Coupling relays
If you use coupling relays, then only use relays with encapsulated, dust-protected elec-
tronic contacts. The relays must be suitable for switching low voltages and currents (5
... 30 V, 0.1 ... 20 mA).
Binary inputs /
binary outputs
Binary input commands can also be issued directly as 0/1 commands from a PLC in-
stead of using a coupling relay. Signal levelsee Sec. Technical Data.
The binary outputs are short-circuit proof and interference-voltage-proof up to 35 V
against GND. Applying a higher external voltage may destroy them!
05262AXX
Figure 58: Connecting HF...-... output filters
Содержание MOVITRAC 07
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