Output Specifications - Renishaw TONiC T20 1 Series Installation Manual

Output specifications

Digital output signals
Form – Square wave differential line driver to EIA RS422A (except limits P and Q)
Incremental † 2 channels A and B in quadrature (90° phase shifted)
Signal period
A
B
†
Reference
Z
Wide reference †
Z
NOTE: Select 'standard' or 'wide' reference at time of ordering, to match the requirements
of the controller being used. Wide reference mark not available on Ti0004 interfaces.
Limits Open collector output, asynchronous pulse
Digital Ti interfaces only
Active high
Repeatability < 0.1 mm
P Q
Length of limit actuator
NOTE: No limits on TD interfaces. P limit becomes E+ for options E, F, G, H.
TONiC RESM20 angle encoder system installation guide
Resolution
Bi-directionally repeatable pulse Z,
duration equal to the resolution
Bi-directionally repeatable pulse Z,
duration equal to the signal period
or Active low
Repeatability < 0.1 mm
P Q
Length of limit actuator
Alarm † Asynchronous pulse
Line driven
> 15 ms
E
Alarm asserted when:
– Signal amplitude < 20% or > 135%
– Readhead speed too high for reliable operation
E− output only for Ti options A, B, C, D
or 3-state alarm
Differentially transmitted signals forced open circuit for > 15 ms when alarm conditions valid.
Set-up *
1
Voltage
at X
0
0
Signal level
Set-up signal voltage proportional to incremental signal amplitude
* Set-up signals as shown are not present during calibration routine.
†
Inverse signals not shown for clarity
100%
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