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(12)The operator must check for the safety of the surrounding before

turning on or off the power.  Prevent operation by any person who
is not concerned.

(13) If the supply voltage drops when the power supply is interrupted

instantaneously, the inverter will detect the undervoltage and
shut off the output.  When the supply voltage is restored, the
inverter automatically resumes operation.  Check the system
consistency.

(14)The heat sink on the side of the inverter becomes hot.  Never

touch it during operation or before a sufficient time passes after
the inverter is stopped.

(15)Every possible effort has been made to ensure the quality of the

product.  However, unexpected external noise and static electric-
ity, as well as incorrect terminal wiring, may cause operation
beyond the setting.  Pay special attention to your machines and
their safety.

8-2 Operational precautions

(1) The voltage source capacity shall be within the range from 1.5

times the inverter capacity to 500 kVA.  When the voltage source
capacity exceeds 500 kVA or a phase advance capacitor is
switched on the power supply side, an excessive peak current
may flow through the power input circuit, braking the converter
section.  In that case, install a power factor improved AC reactor,
which matches the inverter capacity, on the input side of each
inverter.

(2) Wiring or operation sequence that permits application of input

voltage to the output side of the inverter will cause inverter break-
down.  Avoid it.

(3) The life of inverter is greatly influenced by the ambient tem-

perature.  Lower the ambient temperature as much as possible
within the allowable range.

(4) Do not install an electromagnetic contactor between the inverter

and motor to run and stop the motor by the electromagnetic
contactor.  Run and stop the motor by the operation switch on the
front panel or by the external control terminal "RUN."

(5) Do not connect a phase advance capacitor to the output side of

the inverter, otherwise the phase advance capacitor may be bro-
ken.

(6) Do not conduct overload operation in excess of the inverter ca-

pacity (example: operation in excess of the rated current of the
inverter), otherwise the inverter may be broken or the service life
of the inverter may be shortened.

(7) When operating a motor by the inverter, the leakage current may

increase and the earth leakage breaker may malfunction.  In

CAUTION

!

Содержание CAI40C

Страница 1: ...nual EM0102E 1 Inverter CAI Series CAI 40 90 CType CAUTION Carefully read the Safety Precautions in the introduction before reading the text of the operation manual in order to thoroughly understand t...

Страница 2: ...ty Precautions 1 Standard specifications 6 Outline drawing 7 Installation 8 Wiring 10 Operation 12 Alarm output 17 Maintenance and inspection 18 Check the contents of packing Operation Manual Inveter...

Страница 3: ...the customer is beyond the scope of our warrantee and we will not take responsibility for any result of remodeling Safety Precautions Carefully read this operation manual for correct use before instal...

Страница 4: ...Do not place the machine near inflammables otherwise a fire may break out Do not hold the case at the front of the inverter otherwise the inverter may drop leading to injury Do not allow metal chips a...

Страница 5: ...e breakdown or a fire may result 3 Wiring DANGER Check that the input power is OFF before wiring otherwise an electric shock or fire may result Be sure to install a magnetic circuit breaker NFB otherw...

Страница 6: ...ise the equipment may be broken Be sure to attach the case cover before turning the power on Do not remove the case cover during power supply otherwise an elec tric shock may result Do not operate swi...

Страница 7: ...may result DANGER This inverter has a high voltage terminal which is dangerous Do not touch it otherwise an electric shock may result Conduct maintenance or inspection five minutes or more after the...

Страница 8: ...switch Operation stop command forward reverse command frequency command free run input and alarm signal output Self diagnosistrip protectionformovervoltage protectionfrom instantaneousovercurrent prot...

Страница 9: ...S485 POWER MOTOR MAX RUN STOP FWD REV MIN 60 0 100 0 80 0 4 5 80 0 90 0 52 5 137 1 125 1 8 0 2 7 52 5 AC INVERTER POWER ALARM RS485 POWER MOTOR MAX RUN STOP FWD REV MIN 1 3 1 3 RS485 Outline drawing U...

Страница 10: ...ions Refer to Fig a when installing the machine Machine the installa tion surface as shown in Fig b DIN rail cannot be attached Secure the machine without a gap between the machine and the mounting su...

Страница 11: ...s without vibration Avoid continuous use of resonance point Set the machine vertically and provide a space for ven tilation around the ma chine Avoid hot or humid places or places with a large quan ti...

Страница 12: ...p Forward reverserotation Natural braking stop Error signal output terminal Open collector Common Communication port External control terminal 8PIN Digital gland Magnetic circuit breaker MCB AC reacto...

Страница 13: ...match the motor rating 6 The grounding terminal is inverter ground FG Use Type D grounding 100 or less 1 6 mm or less 7 Do not install a power factor improved phase advanced ca pacitor which may be br...

Страница 14: ...supplied ALARM LED Blinks when the protective function is in operation Refer to p 15 for details Front panel volume Refer to p 14 for details Operation stop switch STOP RUN Forward reverse rotation sw...

Страница 15: ...rnal panel All settings are OFF when the product is shipped Switch setting Setting item 100 50Hz 50Hz 100Hz 100 60Hz 100 120Hz Switch setting Setting item 100 60Hz Low torque output High torque output...

Страница 16: ...external speed control The set frequency at that time is the total of respective set frequencies Set MIN when the front panel volume is not used Step 1 Primary power ON Power LED ON Step 2 Determine...

Страница 17: ...opped when the undervoltage in the DC intermediate circuit is detected The inverter is stopped when overheating of coolant is detected The inverter is stopped when the current due to overcurrent is de...

Страница 18: ...spection period may change when the operating condi tion differs during periodical inspection 6 2 Resetting when protective function is activated Reset the protective function by any one of the follow...

Страница 19: ...y check the equipment for safe op eration 7 Operation may be unstable at a certain output frequency or un der a certain load condition depending on the combination of the inverter and motor Sufficient...

Страница 20: ...supply side an excessive peak current may flow through the power input circuit braking the converter section In that case install a power factor improved AC reactor which matches the inverter capacit...

Страница 21: ...at the wire on the terminal block is tightened correctly If it is loose overheating may result 12 When the inverter is used to operate a motor radio noise may be generated in the inverter input output...

Страница 22: ...as set forth herein shall not apply to any problem or damage to the Product that is caused by 1 installation connection combination or integration of the Product in or to the other equipment or machin...

Страница 23: ...Printed 2009 12 EM0102E 1 5...

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