Installation manual

Danaher Motion Kollmorgen Wiring
SERVOSTAR
®
S and SERVOSTAR
®
CD Series 41
3. Hall signals provide information representing the approximate absolute
location of the motor shaft. From this information, the motor can
sinusoidally commutate forward until the index signal is detected - at which
time, true position is known. These signals are isolated by an opto-coupler
and can be differential or open-collector type signals.
SPECIFICATIONS
Encoder Requirements
Required Signals Types: A, B with or without Index pulse
A, B, Index with or without Hall Channels
* Halls may be integral or discrete
Signal Type: A-quad-B and Marker
Halls
Differential: do not connect single-ended
Differential or Open Collector
System Voltage 5 VDC
Maximum Input Frequency From encoder: 3 MHz (before quad), 12 MHz (after quad)
Maximum Cable Length System Dependent: 50 ft. (15 m) Recommended
Maximum Line Count Per Motor Electrical Cycle 10,000,000
Maximum Supply Current from SERVOSTAR 250 mA
Protection Separate Voltage Regulator, Broken wire detector for A,
B, Index, and Hall channels, Illegal Hall Code Detection
CABLE LENGTHS
The recommended cable length when using the SERVOSTAR to source the
encoder is no longer than 50 ft. (15 m). Long encoder cables tend to have high
DC resistance that may create significant loading effects in the supply lines to
the encoder. Please consider this carefully when designing the system. An
option that would allow the use of longer lengths, implements a separate supply
located at the motor to source the encoder. Quadrature signals returned to the
drive are differentially connected which normally do not constitute a problem
with longer cable lengths.
RESOLUTION AND ACCURACY
A SERVOSTAR encoder-based system typically exhibits minimal inaccuracies
outside of the encoder itself. To get an approximate total value the customer
need only look to the specifications listed for the encoder being used.