Figure 47: Location of Emergency Motion Off switches
l To use the Emergency Motion Off switch in an emergency, push it in.
l To reset the Emergency Motion Off switch, turn the knob clockwise until it pops out (see arrows etched in the knob).
Note: If the Emergency Motion Off switch is used, if you have a protocol running, it may be interrupted and may need to
be restarted.
When to use the Emergency Off switch:
l Any time the safety of the operator is in question.
l Any time strange, loud, or potentially damaging noises are coming out of the Echo Liquid Handler.
l When the instrument door will not open, and the source or destination plate gripper stages collide with the door.
l If water is leaking from the Echo Liquid Handler.
l In any other situation that suggests immediate shutdown of the Echo Liquid Handler is appropriate.
When the Emergency Off switch is used, the following actions are performed:
l All motors are disabled.
l The coupling fluid pump is turned off.
l All pneumatic actuators are sent to their default positions.
l The anti-static bars are turned off.
l All RF devices (RF power supply, RF amplifier, RF switch, and so on) are turned off.
l The HV grid is turned off.
l The internal controller aborts all processes in progress, returns an error to the system invoking the aborted process,
designates the three stages as not calibrated, and goes into a halted state.
Activating the Emergency Off switch does not turn off the following:
l Internal Echo Liquid Handler controller
l AC power inside the Echo Liquid Handler power distribution panel
l Internal 24 VDC power supply (power output, however, is interrupted)
l External communications (Ethernet, USB)
l Coupling fluid chiller
Recovering from an EMO shutdown
Startup/Shutdown CHAPTER 5 | Software
86
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