YASKAWA Sigma-7-S Series, Product Manual

Page: 71 / 111

4.2 Dynamic Brake Resistor Connections
4.2.1 Terminal Symbols and Terminal Names
4-5
4
Wiring and Connecting a Dynamic Brake Resistor
4.2 Dynamic Brake Resistor Connections
Connectors or terminal blocks are used to wire a dynamic brake resistor.
The SGD7S-R70A to -2R8A, SGD7S-R70F to -2R8F, and SGD7W-1R6A to -2R8A do not sup-
port the dynamic brake hardware option specifications, so they do not have any dynamic brake
resistor terminals.
For the SGD7S-3R8A to -330A and SGD7W-5R5A to -7R6A, connect the external dynamic
brake resistor with the enclosed connectors.
For the SGD7S-470A to -780A, connect the external dynamic brake resistor using the terminal
block.
The location and dimensions depend on the model of the SERVOPACK. Refer to the following
sections for details.
1.3 Part Names on page 1-4
2.2 External Dimensions on page 2-8
For information on connections other than to the dynamic brake resistor terminals, refer to the
standard SERVOPACK product manual.
4.2.1 Terminal Symbols and Terminal Names
4.2.2 Wire Sizes and Tightening Torques
*
Any wire sizes within the ranges given in this table can be used for the external dynamic brake resistor.
CAUTION

Wire all connections correctly according to the following table.
If the wiring is not correct, there is a risk of SERVOPACK failure or fire.
SERVOPACK
Models
Terminal
Symbols
Terminal Name Specification
SGD7S- D1 and D2
Dynamic Brake
Resistor terminals
These terminals are used to connect an external
dynamic brake resistor for a
Σ
-7S SERVOPACK.
Note: The SGD7S-R70A to -2R8A and -R70F to -2R8F
SERVOPACKs do not have D1 and D2 terminals.
SGD7W-
D1A and
D2A
Dynamic Brake
Resistor terminals for axis
A
These terminals are used to connect an external
dynamic brake resistor for a
Σ
-7W SERVOPACK.
Note: The SGD7W-1R6A to -2R8A SERVOPACKs do
not have D1A, D2A, D1B, and D2B terminals.
D1B and
D2B
Dynamic Brake
Resistor terminals for axis
B
SERVOPACK Models
Terminal
Symbols
Wire Size
Screw
Size
Tightening
Torque
[N

m]
SGD7S-
R70A, R90A, 1R6A,
2R8A, R70F, R90F,
1R6F, and 2R8F
- (There are no D1 and D2 terminals.)
3R8A, 5R5A, 7R6A,
120A, 180A, 200A,
and 330A
D1 and D2
AWG14 (2.0 mm
2
) to AWG18
(0.9 mm
2
)
*
– –
470A and 550A D1 and D2
AWG12 (3.5 mm
2
) to AWG18
(0.9 mm
2
)
*
M4 1.0 to 1.2
590A and 780A D1 and D2
AWG12 (3.5 mm
2
) to AWG18
(0.9 mm
2
)
*
M4 1.6 to 1.8
SGD7W-
1R6A and 2R8A - (There are no D1A, D2A, D1B, and D2B terminals.)
5R5A and 7R6A
D1A, D2A,
D1B, and
D2B
AWG14 (2.0 mm
2
) to AWG18
(0.9 mm
2
)
*
– –