Explanation Of Power Supply System; Signal Explanations - Mitsubishi Electric MR-J3-B Instruction Manual

3. SIGNALS AND WIRING

3.3 Explanation of Power Supply System

3.3.1 Signal explanations

Connection Target
Abbreviation
(Application)
L
1
Main circuit power
L
2
supply
L
3
P Power factor improving
1
P DC reactor
2
P
Regenerative brake
C
option
D
L Control circuit power
11
L supply
21
U
V Servo motor power
W
Return converter
N
Brake unit
Protective earth (PE)
POINT
For the layout of connector and terminal block, refer to outline drawings in
Chapter 9.
Supply the following power to L
connect the power supply to L
Power supply
3-phase 200 to 230VAC, 50/60Hz
1-phase 230VAC, 50/60Hz
1-phase 100 to 120VAC, 50/60Hz
When not using the power factor improving DC reactor, connect P
When using the power factor improving DC reactor, disconnect the wiring across P
and connect the power factor improving DC reactor across P
11.10.)
1) MR-J3-350B or less
When using servo amplifier built-in regenerative brake resistor, connect between P-D
terminals. (Wired by default)
When using regenerative brake option, disconnect between P-D terminals and
connect regenerative brake option to P terminal and C terminal.
2) MR-J3-500B.700B
MR-J3-500B and 700B do not have D terminal.
When using servo amplifier built-in regenerative brake resistor, connect P terminal
and C terminal. (Wired by default)
When using regenerative brake option, disconnect P terminal and C terminal and
connect regenerative brake option to P terminal and C terminal. (Refer to Section
11.2)
Power supply
1-phase 200 to 230VAC, 50/60Hz
1-phase 100 to 120VAC, 50/60Hz
Connect to the servo motor power supply terminals (U, V, W).
When using return converter/brake unit, connect to P terminal and N terminal.
Do not connect to servo amplifier MR-J3-350B or less.
For details, refer to Section 11.3, 11.4.
Connect to the earth terminal of the servo motor and to the protective earth (PE) of the
control box to perform grounding.
Description
, L , L . For the 1-phase 230VAC power supply,
1 2 3
, L , and keep L
1 2
Servo amplifier
Servo amplifier
3 - 8
open.
3
MR-J3- MR-J3-
10B to 100B to
70B 700B
L L L
1 2 3
L L
1 2
-P . (Factory-wired.)
1 2
-P . (Refer to Section
1 2
MR-J3-10B to MR-J3-10B1 to
700B 40B1
L L
11 21
L
11
MR-J3-
10B1 to
40B1
L L
1 2
-P
1 2
L
21