Mitsubishi Electric FR-A800 Plus Series Installation Manuallines page 14

WIRING
*1
For the FR-A820-03800(75K)-R2R or higher, and the FR-A840-02160(75K)-R2R or higher, or if using a motor with a capacity of 75 kW or higher,
always connect a DC reactor (FR-HEL), which is available as an option.
(When selecting a DC reactor, refer to page 48, and select one suitable for the applicable motor capacity.) When a DC reactor is connected to
the FR-A820-03160(55K)-R2R or lower or the FR-A840-01800(55K)-R2R or lower, if a jumper is installed across the terminals P1 and P/+, remove
the jumper before installing the DC reactor.
*2
When using separate power supply for the control circuit, remove the jumper between R1/L11 and S1/L21.
*3
The function of these terminals can be changed with the input terminal assignment (Pr. 178 to Pr. 189). (Refer to page 29.)
*4
Terminal JOG is also used as the pulse train input terminal. Use Pr. 291 to choose JOG or pulse.
*5
Terminal input specifications can be changed by analog input specification switchover (Pr. 73, Pr. 267). To input a voltage, set the voltage/
current input switch OFF. To input a current, set the voltage/current input switch ON. Terminals 10 and 2 are also used as a PTC input terminal.
(Pr. 561) (Refer to "FR-A800 Instruction Manual (Detailed)".)
*6
It is recommended to use 2 W, 1 k when the frequency setting signal is changed frequently.
*7
If connecting a brake resistor, remove the jumper between PR and PX. (FR-A820-00490(7.5K)-R2R or lower, FR-A840-00250(7.5K)-R2R or lower).
*8
Connect a brake resistor across terminals P/+ (P3) and PR. The terminal PR is equipped in FR-A820-00046(0.4K)-R2R to 01250(22K)-R2R, and FR-
A840-00023(0.4K)-R2R to 01800(55K)-R2R. Install a thermal relay to prevent overheating and damage of discharging resistors. (Refer to "FR-
A800 Instruction Manual (Detailed)".)
*9
Do not connect the DC power supply (under DC feeding mode) to terminal P3.
*10
The function of these terminals can be changed with the output terminal assignment (Pr. 195, Pr. 196). (Refer to page 29.)
*11
The function of these terminals can be changed with the output terminal assignment (Pr. 190 to Pr. 194). (Refer to page 29.)
*12
The terminal F/C(FM) can be used to output pulse trains as open collector output by setting Pr. 291.
*13
Not required when calibrating the scale with the operation panel.
*14
Upon delivery the FR-A800-E-R2R inverter models are not equipped with the RS-485 terminal block.
*15
For FR-A800-E-R2R: The option connector 2 cannot be used because the Ethernet board is installed in the initial status. The Ethernet board
must be removed to install a plug-in option to the option connector 2. (However, Ethernet communication is disabled in that case.)
CAUTION
O To prevent a malfunction due to noise, keep the signal cables more than 10 cm away from the power cables. Also, separate the main circuit
cables at the input side from the main circuit cables at the output side.
O After wiring, wire offcuts must not be left in the inverter.
Wire offcuts can cause an alarm, failure or malfunction. Always keep the inverter clean.
When drilling mounting holes in a control box etc., take care not to allow chips and other foreign matter to enter the inverter.
O Set the voltage/current input switch in the correct position. An incorrect setting may cause a fault, failure or malfunction.
8