The turret moved without a command; often caused by a faulty output driver or clamp signal. PANEL ALARM
Mori Seiki "EX" alarms are PLC-related messages that originate from the machine tool builder rather than the underlying CNC control (such as Fanuc or Mitsubishi). These alarms typically indicate mechanical, electrical, or sequence-related issues specific to the machine's peripheral hardware, such as the hydraulic unit, automatic tool changer (ATC), or door interlocks.
Cycle start was attempted while the Edit Key switch was still in the ON position. CHUCK UNCLAMPED