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Names of each part
3 Controller
(2) CR751 controller
Fig.3-2 ： Names of controller parts (CR751)
<1> ACIN connector.......................................The connector for AC power source (single phase, AC200V) input (a socket
housing and a terminal are attached).
Refer to a separate manual “INSTRUCTION MANUAL/Controller setup,
basic operation, and maintenance” for how to connect a power cable.
<2> PE terminal ................................................The screw for grounding of the cable. (M4 screw x 2 place)
<3> POWER lamp.............................................Lamp of control power source
<4> Machine cable connector (motor power)
AMP1, AMP2: Motor power, BRK: Motor brake
<5> Machine cable connector (motor signal)
CN2: Motor signal
<6>T/B connection connector (TB) ........This is a dedicated connector for connecting the R33TB. When not using T/
B, connect the attached dummy plug.
<7>Filter cover..................................................There is an air filter and buttery inside this cover.
<8>CNUSR connector....................................The connector for input/ output connection dedicated for robot.
(CNUSR1、 CNUSR2) (a plug connector attached)
Refer to a separate manual “INSTRUCTION MANUAL/Controller setup,
basic operation, and maintenance” for the connection method and
thefurther description of pin assign.
<9>Grounding terminal...................................The grounding terminal for connecting cables of option card. (M3 screw x 2
places)
<10>Power supply charge lamp (CRARGE)
The lamp is to ensure safe timing (prevent electric shocks) when removing
the cover (users are not normally required to remove the cover).
This lamp is illuminated (red) when electrical energy accumulates on the
controller’s power supply circuit board due to the robot’s servo being ON.
<2> <1> <3>
<4> <15> <9>
<5> <6> <14> <13> <12><11> <8>
<10>
<7>
Controller (Front side)
Exhaust
Controller (Rear side)