Rs-485 interface board, rs-485 communication terminals (96 pages)
Summary of Contents for Mitsubishi Electric FR-A8AC
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INVERTER Plug-in option FR-A8AC INSTRUCTION MANUAL 120VAC contact input function Relay output function PRE-OPERATION INSTRUCTIONS INSTALLATION AND WIRING CONTACT INPUT RELAY OUTPUT...
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Thank you for choosing this Mitsubishi inverter plug-in option. This Instruction Manual provides handling information and precautions for use of this product. Incorrect handling might cause an unexpected fault. Before using this product, always read this Instruction Manual carefully to use this product correctly. Please forward this Instruction Manual to the end user.
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Additional Instructions The following instructions must be also followed. If the product is handled incorrectly, it may cause unexpected fault, an injury, or an electric shock. Caution Transportation and mounting Do not install or operate the plug-in option if it is damaged or has parts missing. ...
PRE-OPERATION INSTRUCTIONS Unpacking and checking the product Take the plug-in option out of the package, check the product name, and confirm that the product is as you ordered and intact. The product is a plug-in option for the FR-A800 series. 1.1.1 Product confirmation Check the enclosed items.
1.1.2 SERIAL number check The plug-in option is compatible with the inverter having the following SERIAL number or later. Check the SERIAL number indicated on the inverter rating plate or package. SERIAL number check Rating plate example The SERIAL consists of one symbol, two characters indicating ...
Component names Front view Rear view Refer to Symbol Name Description page Mounting hole Fixes the option to the inverter with screws, or installs spacers. Terminal block Connect signal cables. Connector Connects to the option connector of the inverter. PRE-OPERATION INSTRUCTIONS...
INSTALLATION Pre-installation instructions Check that the inverter's input power and the control circuit power are both OFF. Caution With input power ON, do not install or remove the plug-in option. Otherwise, the inverter and plug-in option may be damaged. ...
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NOTE • When mounting/removing the plug-in option, hold the sides of the option. Do not press on the parts on the circuit board. Stress applied to the parts by pressing, etc. may cause a failure. • Caution must be applied to mounting screws falling off when removing and mounting the plug-in option. •...
Wiring (1) Untwist the shielded twisted pair cables after stripping its sheath. Shield Also, perform protective treatment of the shield to ensure that it will not make contact with (perform protective treatment) the conductive area. Sheath Strip off the sheath for the below length. If the length of the sheath pealed is too long, a short Shielded twisted circuit may occur with neighboring wires.
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(2) Loosen the terminal screw and insert the cable into the terminal. Terminal Tightening torque Cable size Screwdriver screw size Small flat-blade screwdriver 0.22N.m to 0.25N.m 0.3mm to 0.75mm (Tip thickness: 0.4mm/tip width: 2.5mm ) NOTE • Undertightening can cause cable disconnection or malfunction. Overtightening can cause a short circuit or malfunction due to damage to the screw or unit.
Internal block diagram Instead of 24VDC signals for contact input terminals of the inverter control circuit terminal block, 120VAC signals can be applied to FR-A8AC contact input terminals. The following figure is the internal block diagram of the FR-A8AC. Connector Controller...
Common terminal to X1-X8 When the FR-A8AC is installed, STF, STR, RL, RM, RH, RT, CS, MRS of the inverter control terminal block are invalid and the FR-A8AC input terminal (X1 to X8) is valid. (STF signal is assigned to X1 and STR signal to X2 only.)
RELAY OUTPUT Internal block diagram Two signals can be selected among inverter's standard signals (RUN, SU, FU, etc.) to be output as relay contact (1C) signals. The following figure is the internal block diagram of the FR-A8AC. Connector Controller RELAY OUTPUT...
(Detailed) of the inverter. Only the positive logic can be M421 RA2 output selection set. Extension output terminal M432 9999 5 to 50 ms, 9999 filter NOTE • When both the FR-A8AC and FR-A8AR are installed, the FR-A8AR function is invalid. RELAY OUTPUT...
Output signal setting Setting output signals Use Pr.320 and Pr.321 to assign signals to the terminals ABC (1, 2). The settings of Pr.320 and Pr.321 are the same as those of Pr.190 to Pr.196 (output terminal function selection). For the details of Pr.190 to Pr.196, refer to the Instruction Manual (Detailed) of the inverter.
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REVISIONS *The manual number is given on the bottom left of the back cover. Print date *Manual number Revision Sep. 2014 IB(NA)-0600559ENG-A First edition...
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INVERTER HEAD OFFICE: TOKYO BUILDING 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN IB(NA)-0600559ENG-A(1409) MEE Printed in Japan Specifications subject to change without notice.