Cautions In Utilization - Veichi Electric AC70E-S2-R40G Manual

External output signal
Protection function
Setting
Running
Display
Fault
Installation sites
Temperature, humidity
Vibration
Condition Storage Temperature
Installation mode
Protection degree
Cooling Mode

1.4 Cautions in utilization

Frequency inverter is designed to be permit to run under industrial surrounding with electromagnetic
interference. Usually, if install quality is good, it ensures frequency inverter safe run without fault. Pls
install according to below rules to ensure reliable run and avoid the impact of electromagnetic
interference.
● Ensure all equipments connected to frequency inverter are connected to star earth or common
earth bus by short and thick cable as well as frequency inverter. Motor earthing should be as
close as possible. Do not connect motor cruster to earth terminal of frequency inverter or
protection earth of control system.
● Conductor should be flat/ multi cores what has lower impedance at high frequency.
● Cut cable neatly to ensure unshield cable as short as possible.
● Control wire should be away from the supply cable and motor cable as far as possible and use
independent wire slot. While it must across to the supply cable and motor cable, should be 90º
vertical acorss.
●Ensure that the contactor in the cabinet has wave surge suppresser.Or'R-C'damping circuit is
connected to the winding of AC contactor. Voltage dependent resistor corresponding to the
winding voltage is used. And freewheel diode or components such as voltage dependent
resistor corresponding to the winding voltage are connected to DC contactor. It is very important
while contactor, controlled by output relay of inverter, acts frequently.
● Cable connected to motor should be shielded cable or armoured cable. The two barriers are
earthed reliably by cable grounding card.
● Build noise filter at the input side to reduce electromagnetic interference from other equipments
at the power grid side. The noise filter should be as close to the inverter power input terminal as
Relay output, the collector output, 0-10V output, 4-20mA output,
the frequency pulse output
Overvoltage, undervoltage, current limiting, over-current,
overload, electric thermal relays, overheat,
protection
Function number/data
Output frequency, give frequency, output current, input voltage,
output voltage, motor speed, PID feedback, quantitative PID,
module temperature, input and output terminal
Overvoltage, undervoltage, overcurrent, short circuit, phase
missing, overload, heat, pressure stall, current limiting, data
protection is damaged,
historical fault
Indoor, elevation of not more than 1000 m, no corrosive gases
and direct sunlight
-10—+40 , 20%—90%RH(No condensation)
Below 20Hz less than 0.5g
-25—+65
Wall-mounted mode
IP20
Forced air-cooling
5
pressure
current fault operating conditions,
stall, data