Delta MMC120 - Manual (Page 139)

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Overload protection One-second short-circuit duration
Overvoltage protection Outputs are protected by clamp diodes
Bus Compatibility
ModConnect® Certified partners
Programmable Controller Quantum Automation Series
Quantum back plane Direct connection
Inputs/outputs 4 input and 4 output registers,
using 64 input and 64 output points
Storage register
requirement
32 registers for parameters (16 per axis)
32 registers max. for motion profiles
2048 registers max. for event steps
Failsafe Timers
No internal bus activity After 15µs, the drive outputs are disabled
Software watchdog After 17ms, the module resets if the
microprocessor does not retrigger the
onboard watchdog timer
FLASH Memory Storage
Write/erase Cycles 10,000 minimum
Appendix G: Glossary
Glossary
Closed Loop Mode: Sometimes called Servo mode. In this mode the difference
between the Target and Actual position/pressure is the error that the PID
routine uses to compute a corrective drive that minimizes the error.
Extending: Going in the direction where the transducer’s counts are increasing.
Hard Stop: An emergency stop condition where the drive is immediately set to the
null drive value.
LDT: Linear displacement transducer. Technically, this is any sensor that can
sense a linear position. Many use this term interchangeably with MDT.
MDT: Magnetostrictive displacement transducer. A device that senses position
by sending an electron pulse down a wave guide. A twist is imparted on