Epson/Seiko SRC-320 ABS, Руководство пользователя

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Maintenance 5. Motor Power Unit
99
If all LEDs of the motor power unit are not on, there is a possibility of malfunction of the
motor power unit or PSU board.
If an error code is issued, take corrective action by following the troubleshooting steps.
(Refer to “15.1 Error code table” in this volume.) However, if a driver error (error 180 to
189) occurs, cause of the problem will be found by taking the following steps. Refer to
these.
1) Turn the controller OFF.
2) Make a note of the setting of the DIP switch SD2 on the MPU board, and set bits 5 to 8
of the SD2 to the off position which means the setting of a non-use of axis.
Note : When a driver error occurs, the motor main power supply is shut down and
you cannot check the voltage in step 4). That is the reason you have to
switch to the non-use of axis setting.
3) Turn ON the controller and execute the MOTOR ON command.
4) Use a tester to check that the motor power unit is outputting correctly to each AC servo
driver. This cannot be checked at the motor power unit; it must be checked at the AC
servo driver’s power connector (X1A, X1B, X1C and X1D; see the figure below). In
this case, be sure not to make a short-circuit. The voltage is as follows:
„
In order to avoid electric shock, use an insulating glove when you measure the
voltage.
Measuring point
(connector)
Pin number
+ side - side
Standard (V)
X1A
X1B
X1C
X1D
at 6 and 5
(yellow) (black)
AC source power voltage
√
2
±
10 %
(In case of AC 230 V: approx. DC 320 V)
X1A X1B X1C X1D
WARNING
)
NOTE
SD1 SD2