sh030106u.pdf - 第348页

11. OPT ION S AND P ERI PHER AL EQU IPMENT 11 - 27 11.3 FR- BU2-(H) br ake un it POINT Use a 200 V class brake unit and a resis tor unit with a 200 V c lass servo amplif ier, and a 400 V clas s brak e unit a nd a res ist…

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11. OPTIONS AND PERIPHERAL EQUIPMENT
11 - 26
(6) MR-RB1H-4
[Unit: mm]
156
168
144
6
2
149
173
6
Approx. 6
Approx. 24
6
15
φ6 mounting hole
36
40
TE1 terminal
P
C
G3
G4
Applicable wire size: AWG 24 to 10
Tightening torque: 0.5 to 0.6 [N•m]
Mounting screw
Screw size: M5
Tightening torque: 3.24 [N•m]
Mass: 1.1 [kg]
(7) GRZG400-0.8Ω/GRZG400-0.6Ω/GRZG400-0.5Ω/GRZG400-2.5Ω/GRZG400-2.0Ω (standard
accessories)
[Unit: mm]
Approx. K
1.6
Approx. φ47
9.5
40
411
385
10
Approx. φC
Approx. A
Approx. 2.4
40
Approx. 330
Regenerative
resistor
Variable dimensions
Mounting
screw size
Tightening
torque
[N•m]
Mass
[kg]
A C K
GRZG400-0.8Ω 10 5.5 39
M8 13.2 0.8
GRZG400-0.6Ω
16 8.2 46
GRZG400-0.5Ω
GRZG400-2.5Ω
10 5.5 39
GRZG400-2.0Ω
11. OPTIONS AND PERIPHERAL EQUIPMENT
11 - 27
11.3 FR-BU2-(H) brake unit
POINT
Use a 200 V class brake unit and a resistor unit with a 200 V class servo
amplifier, and a 400 V class brake unit and a resistor unit with a 400 V class
servo amplifier. Combination of different voltage class units cannot be used.
When a brake unit and a resistor unit are installed horizontally or diagonally, the
heat dissipation effect diminishes. Install them on a flat surface vertically.
The temperature of the resistor unit case will be higher than the ambient
temperature by 100 ˚C or over. Keep cables and flammable materials away from
the case.
Ambient temperature condition of the brake unit is between -10 ˚C and 50 ˚C.
Note that the condition is different from the ambient temperature condition of the
servo amplifier (between 0 ˚C and 55 ˚C).
Configure the circuit to shut down the power-supply with the alarm output of the
brake unit and the resistor unit under abnormal condition.
Use the brake unit with a combination indicated in section 11.3.1.
To perform continuous regenerative operation, use the FR-RC-(H) power
regeneration converter, FR-CV-(H) power regeneration common converter, or
FR-XC-(H) multifunction regeneration converter.
Brake unit and regenerative options (Regenerative resistor) cannot be used
simultaneously.
Connect the brake unit to the bus of the servo amplifier. As compared to the MR-RB regenerative option, the
brake unit can return larger power. Use the brake unit when the regenerative option cannot provide sufficient
regenerative capability.
When using the brake unit, set [Pr. PA02] to "_ _ 0 1".
When using the brake unit, always refer to the FR-BU2 Instruction Manual.
11.3.1 Selection
Use a combination of servo amplifier, brake unit and resistor unit listed below.
Brake unit Resistor unit
Number of
connected
units
Permissible
continuous
power [kW]
Resultant
resistance [Ω]
Applicable servo
amplifier (Note 3)
200 V
class
FR-BU2-15K FR-BR-15K 1 0.99 8
MR-J4-500B(-RJ)
(Note 1)
2 (parallel) 1.98 4 MR-J4-500B(-RJ)
MR-J4-700B(-RJ)
MR-J4-11KB(-RJ)
MR-J4-15KB(-RJ)
FR-BU2-30K FR-BR-30K 1 1.99 4 MR-J4-500B(-RJ)
MR-J4-700B(-RJ)
MR-J4-11KB(-RJ)
MR-J4-15KB(-RJ)
FR-BU2-55K FR-BR-55K 1 3.91 2 MR-J4-11KB(-RJ)
MR-J4-15KB(-RJ)
MR-J4-22KB(-RJ)
MT-BR5-55K 1 5.5 2 MR-J4-22KB(-RJ)
11. OPTIONS AND PERIPHERAL EQUIPMENT
11 - 28
Brake unit Resistor unit
Number of
connected
units
Permissible
continuous
power [kW]
Resultant
resistance [Ω]
Applicable servo
amplifier (Note 3)
400 V
class
FR-BU2-H30K FR-BR-H30K 1 1.99 16 MR-J4-500B4(-RJ)
MR-J4-700B4(-RJ)
MR-J4-11KB4(-RJ)
(Note 2)
FR-BU2-H55K FR-BR-H55K 1 3.91 8 MR-J4-11KB4(-RJ)
MR-J4-15KB4(-RJ)
MR-J4-22KB4(-RJ)
FR-BU2-H75K MT-BR5-H75K 1 7.5 6.5 MR-J4-22KB4(-RJ)
Note 1. Onl
y
when usin
g
servo motor HG-RR353/HG-UR352
2. When HG-JR11K1M4 servo motor is used, limit the torque during power running to 180% or less, or the servo
motor speed to 1800 r/min or less.
3. When the brake unit is selected by using the capacity selection software, a brake unit other than the combinations
listed may be shown. Refer to the combinations displayed on the capacity selection software for detailed
combinations.
11.3.2 Brake unit parameter setting
Whether a parameter can be changed or not is listed below.
Parameter
Change
possible/
impossible
Remark
No. Name
0 Brake mode switchover Impossible Do not change the parameter.
1 Monitor display data selection Possible Refer to the FR-BU2 Instruction Manual.
2 Input terminal function selection 1 Impossible Do not change the parameter.
3 Input terminal function selection 2
77 Parameter write selection
78
Cumulative energization time
carrying-over times
CLr Parameter clear
ECL Alarm history clear
C1 For manufacturer setting