5.2.2
Main Circuit Wiring
Main circuit wiring cautions
●
Connect power supply only to the main power supply terminals L1, L2
and L3. Connecting power supply to other terminals will damage the fre‐
quency converter. Ensure that the power supply voltage is within the al‐
lowable voltage range specified on the nameplate.
●
The grounding terminal must be properly grounded to avoid electric
shock and fire and reduce interference noise.
●
Insulated crimp terminals must be used to connect terminals and con‐
ductors, to ensure the reliability of connection.
●
After wiring connection, remove all residual loose wires, which may fall
into the frequency converter and cause a failure. Be careful not to allow
swarf from drilling entering the frequency converter. Check the following
points after the circuit connection is completed.
1. Are all connections correct?
2. Are there any missing connections?
3. Do short circuits exist between terminals and wires or ground?
●
To make changes in wiring, disconnect the power and wait for 30 mi‐
nutes to allow the capacitor of the DC circuit to discharge.
●
Wiring shall be carried out with wire sizes in accordance with relevant
electrical codes.
●
A fuse must be provided between the main power supply terminals (L1,
L2 and L3) and the 3-phase AC input power supply. It is preferable to
connect a magnetic contactor (M) in series to ensure both the action of
frequency converter protection and shutting off of power supply (Surge
absorbers should be added at both sides of the magnetic contactor).
●
If the wire between the frequency converter and the motor is very long,
particularly with low output power, the voltage drop may lead to a re‐
duced torque output by the motor.
●
Nothing other than the braking resistor may be connected between the
terminal (+) and PB. Do not short circuit!
●
Electromagnetic interference: The 3-phase inputs/outputs of frequency
converter contain harmonic components, which may interfere with near‐
by communication devices (e.g. AM radio receiver). Therefore, an op‐
tional radio noise filter (only for the input side) or line noise filter may be
installed to minimize interference.
●
Do not attach power capacitor, surge suppressor or radio noise filter to
the output side of frequency converter. This may cause frequency con‐
verter failure or damage the capacitor or suppressor. Immediately re‐
move any such device which has been installed.
●
Integral solid state short circuit protection does not provide branch cir‐
cuit protection. Branch circuit protection must be provided in accordance
with the National Electrical Code and any additional local codes
●
After connecting the power supply terminals, the motor and the control
terminals, replace the cover back before switching on the power.Take
account of the following instructions:
1. Ensure that the power supply can provide appropriate voltage and
current. Ensure that the rated current range is within that of the
converter and power supply.
Bosch Rexroth AG
DOK-RCON02-FV*********IB01-EN-P
Rexroth Frequency Converter Fv
36/219
Installation
Содержание Fv Series
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