12. OPTIONS AND AUXILIARY EQUIPMENT
12.1.2 Brake unit
POINT
The brake unit and resistor unit of other than 200V class are not applicable to the servo amplifier.
The brake unit and resistor unit of the same capacity must be combined. The units of different capacities may result in damage.
The brake unit and resistor unit must be installed on a vertical surface in the vertical direction. If they are installed in the horizontal direction or on a horizontal surface, a heat dissipation effect reduces.
The temperature of the resistor unit casing rises to higher than 100. Do not cause cables and combustibles to make contact with the casing.
The brake unit is the integration of the regenerative control and resistor and is connected to the bus (across
(1) Selection
Brake unit | Resistor unit | Permissible Continuous | Max. Instantaneous | Applicable Servo Amplifier |
|
| Power [kw] | Current [kw] |
|
| 0.99 | 16.5 | ||
| 1.99 | 33.4 |
(2) Connection example
Servo amplifier
Power supply
200 to 230VAC
MC
L1
L2 L3
L11
L21
Servo motor
U
V SM W
|
|
| (Note 2) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||||||
|
|
|
|
|
|
|
|
| P |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| PR |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||||||
|
|
|
|
|
|
|
|
|
|
|
| P/ | PR |
|
| |||||||||||||
|
|
|
|
|
|
|
|
|
|
|
| |||||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
| |||||||||||||||||
|
|
|
|
|
|
|
|
| C |
|
|
|
|
|
|
| ||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||||||||||||
|
|
|
|
|
|
|
|
| N |
|
|
| N/ |
|
|
|
|
|
|
|
|
| (Note 1) |
|
|
| ||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| HA |
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| HB | Alarm |
|
| ||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| output |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| HC |
|
| |||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
P
(Note 1) TH1
THS TH2
Note 1. Make up the external sequence to switch the power off when an alarm occurs or when the thermal relay is actuated. 2. Always remove the wiring (across
12 - 7