Pilz PMCprotego D.48 Operating Manual page 76

Function Description
Setting the parameters:
The following can be set in the "Encoder Emulation" window in the commissioning software:
} Position of the zero pulse within one mechanical revolution (NI-OFFSET parameter)
}
Resolution (before multiplication) in counts/revolution
}
ENCMODE = 1: Incremental encoder compatible signals from the resolver or SinCos
encoder
}
ENCMODE = 3: Encoder signal from X1 is available at X5
Parameter
ENCMODE
1 = incremental en-
coder
3 = Incremental en-
coder interpolation
Timing diagram for the incremental encoder signal:
}
a: Edge spacing ≥ 0.2 μs
} tv: Edge steepness ≤ 0.1 μs
}
NI – td: Delay ≤ 0.1 μs
}
|ΔU| ≥ 2 V/20 mA
}
Default count direction: Upwards, facing the motor axis when rotating clockwise
Output of SSI signals
Functions:
With this encoder emulation, positional data for the SSI interface is prepared from the exist-
ing output signals from the resolver or SinCos encoder.
Operating Manual PMCprotego D.48, PMCprotego D.72
1001735-EN-04
Encoder type
Resolver
SinCos encoder
SinCos encoder
360°
180°
90°
a a
5 V
A
5 V
B
5 V
NI
td td
Resolution
8
256 ... 4096 (2 ...
12
2 )
256 ... 524288 (2
19
2 )
2 7
4 ... 256 (2 ... 2 )
TTL counts * resolu-
tion of encoder
tv
a a
Zero pulse
One per revolution
(only when
A = B = 1)
8
... One per revolution
(only when
A = B = 1)
Encoder signal
passed from X1 to
X5
tv
76