sh030051g.pdf - 第377页

13 - 76 13. SERVO AMPLIFIERS WI TH A LARGE CAPACITY ( 30k TO 55kW ) (4) Connection of the regenerative op tion Always supply 1-phase 200V and 400V res pectively to the cooling fan. The cooling fan specifications are as f…

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13 - 75
13. SERVO AMPLIFIERS WITH A LARGE CAPACITY
(
30k TO 55kW
)
13.9.2 Regenerative option
CAUTION
The specified combinations of regenerative options, converter unit and drive unit
may only be used. Otherwise, a fire may occur.
POINT
The calculation method of regenerative energy is the same as that for servo
amplifiers with 22kW or less. Refer to section 11.2 (2).
(1) Combination and regenerative power
The regenerative power values in the table are the regenerative power of the resistor and are not the rated
power.
Converter unit Drive unit
Regenerative Power [W]
MR-RB139
(1.3
)
(Note 1) Three
MR-RB137
(1.3
) in parallel
MR-RB136-4
(5
)
(Note 2) Three
MR-RB138-4
(5
) in parallel
MR-J3-CR55K
MR-J3-DU30KB
1300 3900
MR-J3-DU37KB
MR-J3-DU30KB4
1300 3900 MR-J3-CR55K4
MR-J3-DU37KB4
MR-J3-DU45KB4
MR-J3-DU55KB4
Note. 1. The composite resistor value of three options is 1.3 . The resistor value of one option is 4 .
2. The composite resistor value of three options is 5
. The resistor value of one option is 15 .
(2) Parameter setting
POINT
Always set parameter No.PA02 of the drive unit to “ 00”(Not used) since
the regenerative option cannot be connected to the drive unit.
When using the regenerative option, set the parameter of the converter unit. Match parameter No.PA01 to
the regenerative option used.
Regenerative option selection
00: Not used
01: MR-RB139
02: MR-RB137 (3 pcs.)
11: MR-RB136-4
12: MR-RB138-4 (3 pcs.)
Parameter No.PA01
00
(3) Regenerative loss of drive unit and servo motor
Drive unit Inverse efficiency [%] C charge [J]
MR-J3-DU30KB
MR-J3-DU37KB
MR-J3-DU30KB4
90 450
MR-J3-DU37KB4
MR-J3-DU45KB4
MR-J3-DU55KB4
13 - 76
13. SERVO AMPLIFIERS WITH A LARGE CAPACITY
(
30k TO 55kW
)
(4) Connection of the regenerative option
Always supply 1-phase 200V and 400V respectively to the cooling fan. The cooling fan specifications are as
follows.
Table 13.3 Cooling fan
Item 200V class 400V class
Model MR-RB137 MR-RB139 MR-RB136-4 MR-RB138-4
Voltage Frequency 1-phase 198 to 242VAC, 50/60Hz 1-phase 380 to 480VAC, 50/60Hz
Power consumption [W] 20 (50Hz)/18 (60Hz) 20 (50Hz)/18 (60Hz)
The regenerative option generates heat of
100 higher than the ambient temperature. Fully consider heat
dissipation, installation position, used wires, etc. to place the option. For wiring, use flame-resistant wires or
make the wires flame-resistant and keep them away from the regenerative option. The G3 and G4 terminals act
as a thermal sensor. G3-G4 are opened when the regenerative option overheats abnormally.
Always twist the wires for connection with the converter unit and connect the wires within the overall distance of
5m.
(a) MR-RB139
MR-RB136-4
Converter unit
P
1
P2
(Note 1)
Power factor improving
DC reactor (Option)
C
Servo motor
G4G3
PC
Regenerative
option
Cooling fan
RA
(Note 2)
5m or less
(Note 3)
Power supply
24VDC
power supply
Servo motor
thermal relay
OHS1 OHS2
RS
(Note 4)
Note 1. When using the Power factor improving DC reactor, remove the short bar across P1-P2.
2. G3-G4 contact specifications
Maximum voltage: 120V AC/DC
Maximum current: 0.5V/4.8VDC
Maximum capacity: 2.4VA
3. For specifications of cooling fan power supply, refer to Table 13.3.
4. For MR-RB136-4, “R” is “R400” and “S” is “S400”.
13 - 77
13. SERVO AMPLIFIERS WITH A LARGE CAPACITY
(
30k TO 55kW
)
(b) MR-RB137
MR-RB138-4
POINT
Three of MR-RB137 or MR-RB138-4 are required per converter unit. Please
purchase three of MR-RB137 or MR-RB138-4.
RA
(Note 2)
CPCPCP
Regenerative
option
Converter unit
P
1
P2
(Note 1)
Power factor improving
DC reactor (Option)
C
Servo motor
G4G3
Cooling fan
5m or less
(Note 3)
Power supply
24VDC
power supply
Servo motor
thermal relay
OHS1 OHS2
RS
Regenerative
option
G4G3
Cooling fan
RS
Regenerative
option
G4G3
Cooling fan
RS
(Note 4)(Note 4) (Note 4)
Note 1. When using the Power factor improving DC reactor, remove the short bar across P1-P2.
2. G3-G4 contact specifications
Maximum voltage: 120V AC/DC
Maximum current: 0.5V/4.8VDC
Maximum capacity: 2.4VA
3. For specifications of cooling fan power supply, refer to Table 13.3.
4. For MR-RB138-4, “R” is “R400” and “S” is “S400”.