Mitsubishi Electric MR-J4-*B-RJ010 Series Instruction Manual page 81

4. STARTUP
b) When you use a regenerative option for 7 kW or more servo amplifiers
For 7 kW servo amplifiers, the lead wire of the built-in regenerative resistor connected to P+
terminal and C terminal should not be connected.
The regenerative option should be connected to P+ terminal and C terminal.
A twisted cable should be used. (Refer to "MR-J4-_B_(-RJ) Servo Amplifier Instruction
Manual" section 11.2.4.)
c) When you use a brake unit and power regeneration converter for 5 kW or more servo
amplifiers
For 5 kW or less servo amplifiers, the lead wire between P+ terminal and D terminal should
not be connected.
For 7 kW servo amplifiers, the lead wire of the built-in regenerative resistor connected to P+
terminal and C terminal should not be connected.
Brake unit or power regeneration converter should be connected to P+ terminal and N-
terminal. (Refer to "MR-J4-_B_(-RJ) Servo Amplifier Instruction Manual" section 11.3 to
11.4.)
A twisted cable should be used when wiring is over 5m and under 10m using a brake unit.
(Refer to "MR-J4-_B_(-RJ) Servo Amplifier Instruction Manual" section 11.3.)
d) When you use a power regeneration common converter
For 5 kW or less servo amplifiers, the lead wire between P+ terminal and D terminal should
not be connected.
For 7 kW servo amplifiers, the lead wires of the built-in regenerative resistor connected to
P+ terminal and C terminal should not be connected.
The wire of power regeneration common converter should be connected to P4 terminal and
N- terminal. (Refer to "MR-J4-_B_(-RJ) Servo Amplifier Instruction Manual" section 11.5.)
e) The power factor improving DC reactor should be connected between P3 and P4. (Refer to
"MR-J4-_B_(-RJ) Servo Amplifier Instruction Manual" section 11.11.)
2) 400 V class
a) When you use a regenerative option for 3.5 kW or less servo amplifiers
The lead wire between P+ terminal and D terminal should not be connected.
The regenerative option should be connected to P+ terminal and C terminal.
A twisted cable should be used. (Refer to "MR-J4-_B_(-RJ) Servo Amplifier Instruction
Manual" section 11.2.4.)
b) When you use a regenerative option for 5 kW or more servo amplifiers
For 5 kW or 7 kW servo amplifiers, the lead wire of the built-in regenerative resistor
connected to P+ terminal and C terminal should not be connected.
The regenerative option should be connected to P+ terminal and C terminal.
A twisted cable should be used. (Refer to "MR-J4-_B_(-RJ) Servo Amplifier Instruction
Manual" section 11.2.4.)
Servo amplifier
Power factor improving
DC reactor
P3
(Note)
P4
Note. Always disconnect between P3 and P4 terminals.
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