Technical data

Multi-Axis Controllers and ServoWire
®
Digital Drives – Subject to change – 12/2006
18
Technical Data – Electrical
SEC-SDD ServoWire
®
Digital Drives
3
Motor Feedback Specifications
Motor Encoder Interface
Channels A and B – Differential Digital Inputs
Common mode input –15 VDC to +15 V DC maximum
Absolute maximum input voltage ±25VDC
Maximum encoder counts per rev 1,000,000 (after 4x decode)
Maximum encoder data rate 4MHz
Quadrature specification 90°, ± 45°
Differential turn on voltage:
V
ID
> 0.7 V
–0.7 V > V
ID
> 0.7 V
V
ID
< –0.7 V
Receiver output:
–H
–Notdefined
–L
Channel Z (Index Pulse) – Differential and Single-ended Digital Input
Common mode input –12 VDC to +12 V DC maximum
Absolute maximum input voltage ±25VDC
Differential turn on voltage
V
ID
> 0.2 V
–0.2 V > V
ID
> 0.2 V
V
ID
< –0.2 V
Receiver output:
–H
–Notdefined
–L
Single-ended turn on voltage
V
IS
> 3V
2V> V
IS
> 3V
V
IS
< 2V
Receiver output:
–H
–Notdefined
–L
Encoder Power Supply
5.3 VDC, ± 5%; 450 mA maximum
Encoder Connection
25-pin female
Over-temperature Sensing – Optically Isolated Digital Input
1)
Current to turn on 2.5 mA
Maximum voltage +12 VDC maximum
Motor Feedback Specifications
Resolver Interface
Feedback resolution (software configurable) 65,536 cnt/rev @ 16-bit / 16,384 cnt/rev @ 14-bit / 4,096 cnt/rev @ 12-bit
Maximum motor spee d 1,500 rpm @ 16-bit / 6,000 rpm @ 14-bit / 24,000 rpm @ 12-bit
Resolver type Single speed
Transformation ratio 0.5
Excitation – Differential Digital Output
Excitation amplitude 0 to 8 V RMS / 4 V RMS at 100% (default) in ServoWire Pro
Excitation frequency 2.5, 5 to 10 kHz, software configurable
Feedback Signal (Sine/Cosine) – Differential Digital Inputs
Feedback amplitude 2 V RMS, ± 15%
Resolver Connection
25-pin male
Over-temperature Sensing – Optically Isolated Digital Input
1)
Current to turn on 2.5 mA
Maximum Voltage +12 VDC maximum
1) Should be normally sinking current to prevent an over-temperature condition.
Operating and Environmental Conditions
All Models
Operating temperature 0to50°C/32to122°F
Storage temperature –20to70°C/–13to158°F
Operating and storage humidity 10% to 90 %, non condensing