Mecademic Meca500 - Leds

42 User Manual for the Meca500 Industrial Robot (for rmware 10.1)
OPERATING THE SMART POWER SUPPLY
applied. Therefore, for simplicity, in the rest of this subsection, we will only refer to the E-STOP button
on the power supply.
Similarly, the RESET button on the power supply and the external Reset are inter-related in an OR logic.
Pressing either of these yields the same action, as long as the other button is released. Therefore, for
simplicity, in the rest of this subsection, we will only refer to the RESET button on the power supply.
Once you power up the robot, you must make sure the E-STOP button is released. Then, pressing the
RESET button sends power to the robot motors and to the EOAT (if R4) or to the complete robot (if R3).
Once the robot is activated and homed, pressing the E-STOP button at any time instantly sends a signal
to the robot to rapidly decelerate and come to a complete stop. The power supply then waits for a signal
from the robot indicating that the robot is completely stopped, and as soon as that signal is received,
but no later than in 500 ms, the power supply completely cuts power to the robot, in the case of R3
version, or only to the robot motors and Mecademic' EOAT, in the case of R4 version. In both cases,
the robot brakes are then automatically applied to joints 1, 2 and 3. To use the robot again, you must
release the E-STOP button, and press the RESET button, then activate and home the robot.
Of course, you will also need to manage the stream of commands being sent to the robot. For example,
if a PLC sends commands to the robot, while the robot is powered off, the program that runs on your
PLC will need to be able to detect and manage this situation. To do so, you can get a signal from the
power supply that an E-STOP has been pressed by connecting your PLC to the D-Sub connected, as will
be explained in the following pages. In the case of the R4 version, the event is also reported by the robot
controller.
7.2. LEDs
The power supply is equipped with three LEDs. As long as the power supply is switched on (using its on/
off button) and connected to an AC source that supplies voltage at 90–250 V at frequency of 50–60 Hz,
the green LED next to "Power" stays illuminated. Supplying AC voltage outside this range may damage
the power supply.
Once the power supply is switched on, the yellow Status LED indicates the status of the power supply. If
the yellow LED is off, you need to press the RESET button, which sends power to the robot. If the proper
Meca500 is correctly connected to the power supply, the yellow LED will turn on and stay lit.
If, in any situation, the yellow LED blinks regularly, this means that an emergency stop (either the one
on the power supply or the external one) or the external SWStop is activated. You need to release the
emergency stop or remove the cause for the SWStop and then press the RESET button.
If the yellow LED illuminates in sets of two flashes, this means that the integrated or external RESET
button has been pressed too long. Make sure they are not pressed and then quickly press any of them.
Finally, the red Error LED indicates if there is a problem with the power supply or with some of the
connections to the D-Sub interface. If the red LED flashes (0.1 s on, 0.9 s off), either there is no robot
connected to the power supply or the robot connected is an old version that is not supported by this
power supply. If the red LED illuminates in sets of two quick flashes, the robot has detected a problem
and sent a request to the power supply to be shut down. If this happens, contact us. If the red LED
blinks in regular intervals (0.5 s on, 0.5 s off), this means that there is either a problem in your external
emergency stop or Stop Category 1 connections or in our power supply. If you don't see any problem in
your connections, contact us. Finally, if the red LED is constantly lit, there is a problem with the power
supply. Switch off the power supply and contact us.