Owner's manual

Cornet Installation Guide Introduction
MAN-CORIG (Ver. 1.502)
www.elmomc.com
12
1.7.6. Feedback Options
jj. Incremental Encoder – up to 20 Mega-Counts (5 Mega-Pulse) per second
kk. Digital Halls – up to 2 kHz
ll. Incremental Encoder with Digital Halls for commutation – up to 20 Mega-Counts per
second for encoder
mm. Absolute Encoder
nn. Interpolated Analog (Sine/Cosine) Encoder – up to 250 kHz (analog signal)
 Internal Interpolation – programmable up to x4096
 Automatic Correction of:
• amplitude mismatch
• phase mismatch
• signals offset
 Encoder outputs, buffered, differential
oo. Resolver
 Programmable 10 to 15 bit resolution
 Up to 512 revolutions per second (RPS)
 Encoder outputs, buffered, differential
pp. Tachometer and Potentiometer.
 Two inputs for Tachometer Feedback:
• Up to ±50 VDC
• Up to ±20 VDC
 Potentiometer Feedback:
• 0 to 5 V voltage range
• Resistance: 100 Ω to 1000 Ω
qq. Elmo drives provide supply voltage for all the feedback options.
1.7.7. Fault Protection
The Cornet includes built-in protection against possible fault conditions, including:
rr. Software error handling
ss. Status reporting for a large number of possible fault conditions
tt. Protection against conditions such as excessive temperature, under/over voltage, loss
of commutation signal, short circuits between the motor power outputs and between
each output and power input/return
uu. Recovery from loss of commutation signals and from communication errors