Basic Rules For Reliable And Safe Operation; Inverter Protection-Functions - EURA DRIVES E800 series Safety Instructions, Installation And Operating Manual

1) Common installation rules and safety information regarding EURA E800 inverters

Basic rules for reliable and safe operation

-Proper dimensioning of the system (motor, inverter, mechanical elements).
-Check for correct inverters rated voltage, consider tolerances too
-Review all inverter and motor cabling, including correct terminal tightening torque
(torque values: see table).
-Use proper cable for all control wiring, separate control cable from power cable, min. 15 cm distance.
Use shielded cable for all control connections, exceeding 1 meter
-Twist wires to braking resistors or use shielded cables
-Shielded cables are recommended for motor connection too, especially with distances, exceeding 30
meters.
-Avoid earth loops, all earth connections should have large contact areas, all leading to one central
grounding point (star connected)
IMPORTANT FOR
SAVE INVERTER
OPERATION
E800 – Rev.01 -EN- SOFT Rev. 2.04
© 2015 EURADRIVES EUROPE GmbH
One separate circuit breaker is recommended for each inverter –
allowing separate switch off of single inverters.
CHECK FOR PROPER INVERTER PROGRAMMING
Improper programming of the inverter may result in
unpredictable behavior of the system and subsequent high risk
of damage and/or personnel injury.
The inverter may be enabled for multiple automatic restart
attempts in case of fault – delayed restart is possible.
Unpredictable systems reactions may become the result of
internal inverter defects.
The inverter may ignore commands, speed, STOP instructions,
or signals originated from external components.
The braking function of the inverter may fail.
Depending on the application, external safety components,
working independently from the inverter, are required, to
guarantee the safety of the whole system

Inverter protection-functions

Although the inverter is equipped with intelligent protections functions,
the repetitive triggering of those functions may result in inverter
damage.
The inverter is protected against output short circuit and earth fault,
each displayed by a specific code on the display.
Repetitive earth faults and short circuits may damage the power
stage of the inverter.
The motor must be fixed connected, in case, where interruption of the
motor line is required (for safety reason), the circuit should open/close
with inverter in STOP condition only (final stage disabled).
It is recommended, to keep the inverter powered on at all time, if for
application reason repetitive power on cycling is required, it should
not exceed one cycles every 5 minutes – otherwise contact the
manufacturer.
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