Epsilon Eb Digital Servo Drive Installation Manual
2. If the combination of command pulse frequency and Pulse
Ratio can generate a motor command speed in excess of the
fixed limit of 13000 RPM, an Overspeed Fault will be
activated. In Pulse mode operation and any Summation
mode which uses Pulse mode, the input pulse command
frequency is monitored and this calculation is made. For
example, with a Pulse Ratio of 10 pulses per motor
revolution, the first pulse received will cause an Overspeed
fault even before there is any motor motion.
Max Following Error
This fault is generated when the following error exceeds the
following error limit (default following error limit is .2 revs).
With PowerTools you can change the Following Error Limit
value or disable in the Position tab.
Travel Limit +/-
This fault is caused when either the + or - Travel Limit input
function is active.
"All On"
This is a normal condition during power up of the drive. It will
last for less than 1 second. If this display persists, call
EMERSON for service advice.
Normally, "All On" appears for less than one second during
power-up. All segments are dimly lit when power is "Off." This
is normal when an external signal is applied to the encoder
inputs (motor or master) or serial port from an externally
powered device. The signals applied to the inputs cannot
exceed 5.5V level required to drive logic common or drive
damage will occur.
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