Dynamic Braking Unit - Hitachi SJ300 Series Manual

Dynamic Braking Unit

BRD- □□□ - □□□
●Specifications
Specifications
BRD-S3
Short period （ *1）
Discharging
resistance
Continuous
Operating Voltage
Voltage
Built-in resistor
120W 20Ω
Continuous ON period
0.5sec. max.
Allowable operating cycle
Built-in resistor
allowable operating cycle
（0.5sec. ON, 25sec.OFF）
（*2）
6.6kW instantaneously
120W rated
Operation indicator
Built-in resistor
Protective
functions
Power module
Relay
Maximum number of
parallel-connected operation
Ambient temperature
Storage temperature
Humidity
Vibration
Location
Color
* 1: Short period means that the BRD unit operates for 1-minute in the 10-minute cycle (10%ED). That the BRD- EZ2-30K unit operates for 10-seconds in the 100-seconds cycle (10%ED).
* 2: When using an external resistor, the internal resistor connection has to be removed.
* 3: For resistor thermal protection, add a thermal relay that matches to the resistor.
●BRD-S3, E3, EZ3
2- 5
145
95
75
Terminal
block
TM1 Terminal width 9. M4
N RB P
TM2 Terminal width 6. M3
SL1 SL2 MA1 MA2
TM3 Terminal width 7. M3
95
AL1 AL2 R1 R2
●BRD-EZ2-30K
95
2- 5
75
TM2
TM3
5
TM2
TM3
TM2 Terminal width 6. M3
SL1 SL2 MA1 MA2 AL1 AL2
Ground
terminal
TM3 Terminal width 13. M5
M5
N RB P
200V class
BRD-E3 BRD-E2-30K
4Ω or more
ー ー
(20%ED)
17Ω 17Ω 6Ω
ON...362.5±5V OFF...355±5V
[- 5%, - 10% settable ]
ー
120W 180Ω
Continuous ON period
10sec. max.
ー
Allowable operating cycle
1/10
1/50
（10sec. ON, 90sec. OFF）
0.7kW instantaneously
ー
120W rated
Relay is activated
ー
at 200℃ or more
ー Relay is activated at 100℃ or more
Relay rating AC240V 3A （R load） 0.2A （L load） , DC36V 2A
5
- 10 to 50℃
0.6G or less
Altitude 1,000m or less, indoors (no corrosive gases or dust)
Munsell 5Y7/1, cooling fins in base color of aluminum
●BRD-E2-30K
TM1
TM3
TM2
237 + 1
258
P
●BRD-EZ2-55K
145
TM 1
TM 3
TM 2
237 + 1
35
100
P
BRD-E2-55K BRD-EZ3
2Ω or more
ー
(20%ED)
4Ω 34Ω
ON...725±5V OFF...710±5V
120W 180Ω
ー
（2pcs. in series）
Continuous ON period
10sec. max.
ー
Allowable operating cycle
1/10
（10sec. ON, 90sec. OFF）
1.5kW instantaneously
ー
240W rated
LED ON
Relay is activated
ー
at 200℃ or more
ー
2 5
- 10 to 50℃ - 10 to 50℃
- 10 to 60℃
20 to 90% (no condensation)
0.5G or less 0.6G or less
●BRD-E2-55K
4- 8
Mounting hole
109
Ground terminal
M5
TM1 Terminal width 6. 4. M3
SL1 SL2 MA1 MA2 2 1
TM2 Terminal width 23. M8
N RB P P
TM3 Terminal width 5. 9. M3
AL2 AL1
●BRD-EZ3-110K
4- 8
Mounting hole
109
Ground terminal
M 5
Ground terminal
M5
TM1 Terminal width 6. 4. M3
SL1 SL2 MA1 MA2 2 1
TM2 Terminal width 23. M8
N RB P P
TM3 Terminal width 5. 9. M3
AL2 AL1
400V class
BRD-EZ2-30K BRD-EZ2-55K BRD-EZ3-110K
10Ω or more 6Ω or more
(10%ED) (20%ED)
24Ω 12Ω
ON...737±5V OFF...720±5V
[- 5%, - 10% settable ] [- 5%, - 10% settable ]
ー
ー
ー ー
ー ー
ー （*3） ー （*3）
Relay is activated at 100℃ or more
2
- 10 to 50℃
0.5G or less
4- 8
Mounting hole
TM1
TM3
181
TM2
254 + 1
Ground terminal
275
M 5
TM1 Terminal width 6. 4. M3
SL1 SL2 MA1 MA2 2
TM2 Terminal width 33. M10
N RB P
TM3 Terminal width 7. 5. M3
AL2 AL1
Mounting hole
TM1 Terminal width 6. 4. M3
TM2 Terminal width 23. M8
TM3 Terminal width 5. 9. M3
3Ω or more
(20%ED)
6Ω
ー
ー
ー
ー （*3）
[Unit:mm]
1
P
(Unit : mm)
36