Mitsubishi Electric MR-JE-_A, Instruction Manual

Page: 283 / 370

11. OPTIONS AND PERIPHERAL EQUIPMENT
11 - 10
(2) MR-JE-200A or more
Always remove the wiring from across P+ to D and fit the regenerative option across P+ to C. G3 and
G4 are terminals for thermal sensor. Between G3 and G4 is opened when the regenerative option
overheats abnormally.
D
P+
C
G4
G3
C
P
Regenerative option
5 m or less
Servo amplifier
Always remove the lead from across P+ to D.
(Note 3)
Cooling fan
(Note 1, 2)
Note 1. When using the MR-RB50, forcibly cool it with a cooling fan (1.0 m
3
/min or more,
92 mm × 92 mm).
2. When the ambient temperature is more than 55 °C and the regenerative load ratio
is more than 60% in MR-RB30, forcefully cool the air with a cooling fan (1.0
m
3
/min or more, 92 mm × 92 mm). A cooling fan is not required if the ambient
temperature is 35 °C or less. (A cooling fan is required for the shaded area in the
following graph.)
100
60
0
0
Ambient temperature [°C]
35 55
A cooling fan is
not required.
A cooling fan is required.
Load r
atio [%]
3. Make up a sequence which will switch off the magnetic contactor when abnormal
heating occurs.
G3-G4 contact specifications
Maximum voltage: 120 V AC/DC
Maximum current: 0.5 A/4.8 V DC
Maximum capacity: 2.4 VA