Safety Manual TECHMAN ROBOT Safety System 3.3 19
Safety
Function
Number
Name
Stop
Category
Action of
Fault Detection
SF0
Robot Stick ESTOP
Cat. 1 stop
Discrepancy: Cat.1 Stop
Others: Cat. 0 stop
SF1
User Connected
ESTOP Input
Cat. 1 stop
Discrepancy: Cat.1 Stop
Others: Cat. 0 stop
Note: Stop categories in accordance with IEC 60204-1.
Table 4: Stop Category and Action of Fault Detection of SF0 and SF1
The user can stop movement by pressing the Emergency Stop button. After the movement of the robot has
ceased, the user must confirm that no hazardous conditions are present before manually releasing the
Emergency Stop button to allow reactivation of the robot. The Emergency Stop should be used only when a
critical condition occurs. To stop the movement of the robot under normal operation, use the Stop Button on
the Robot Stick.
If the risk assessment requires additional Emergency Stop devices, the selected device must comply with
the requirements of the IEC 60204-1. Any additional Emergency Stop Devices must be connected to the
User Connected ESTOP Input port (SF1), so they do not diminish the overall performance level of the
Emergency Stop.
Activation of an emergency stop initiates a Cat. 1 stop. The Indication Light Ring of the robot will not display
light and the three lights on the Robot Stick will be constantly blinking. The steps to reset the emergency
stop are as follows:
1. Rotate the Emergency Switch to the pop-up state. At this time, the robot arm will be re-powered. The
Indication Light Ring will have the light blue light on to indicate the Safe Start up Mode.
2. Press the Stop Button on the Robot Stick for about three seconds. The robot will perform the calibration
action of the start-up process and return to the previous operating mode.
WARNING:
The power of the robot arm will be cut and the joint brake will be activated, if the Emergency
Stop is triggered. The Indication Light Ring of robot’s end module will not show light and the
three lights from the robot stick will be constantly blinking. In this case, although each of the
joints will be automatically locked by their brakes, the robot body will still drop slightly, before it
completely stops. Pay attention to the risk that the end part of the robot may pinch the
operator or collide with other objects.
