2-68
2
Preparation
12. Dynamic Brake
Connections of external dynamic brake resistor (Example)
G-frame, 200 V
Remarks
Magnetic Contactor (MC)
Turns on/off the dynamic brake resistor.
Use coil surge suppression units together with
this.
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the main circuit.
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that the servo does not turn on with an
external sequence when the dynamic
brake resistor is fused.
Dynamic Brake Resistor
(to be supplied by customer)
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install an external protective apparatus, such as
thermal fuse without fail.
0RXQWWKHG\QDPLFEUDNHUHVLVWRUon incombustible
material such as metal.
Do not use an external dynamic brake resistor
together with the built-in resistor.
Provide one dynamic brake resistor for each phase.
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resistor.
Do not make short circuit.
Remarks
Remarks
U-phase
V-phase
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Terminals DB1, DB2, DB3 and DB4
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UHVLVWRUGLVFRQQHFWWKHVKRUWLQJEDU
between DB3 and DB4.
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FRQWUROIRUWKHH[WHUQDOG\QDPLFEUDNH
EHWZHHQ/&DQG'%
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(e.g. thermal fuse) between DB2 and
/&
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DB2 must be 300 VAC or below or
100 VDC or below.
Pin NC
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L3
L2
L1
/&
/&
9'&SRZHUVXSSO\
for brake
(to be supplied by
customer)
Thermal fuse
(one fuse for each resistor)
(to be supplied by customer)
Disconnect the
shorting bar
(between DB3
and DB4).
NC
NC
NC
L2C
L1C
NC
NC
NC
DB3
DB2
DB1
DB4
X1
X2
X3
X4
X5
X6
CHARGE
L1
L2
L3
B1
B2
NC
U
V
W
0DLQV
Residual
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