SLE / SLE-DP – SIMOLINK Encoder
02.2001
Connections
Siemens AG
GWE-477 763 4070.76 J
SIMOVERT MASTERDRIVES
Operating Instructions
5-3
Pin
Signal
Meaning
Range
1
A +
Track A Not inverted
6
A –
Track A Inverted
RS422 standard
3
B +
Track B Not inverted
8
B –
Track B Inverted
RS422 standard
2
Zero +
Track zero pulse, not inverted
7
Zero –
Track zero pulse, inverted
RS422 standard
9
GND
Signal ground
(see below)
4, 5
Unused
n.c.
Housing
Outer shield
9-pin SUB D socket with screw locking mechanism (UNC)
Table 5-2
Assignments on encoder interface connector (X2 on SLE, X21 on
SLE-DP)
To maintain immunity to interference, a shielded cable must be used
and the shield attached in the connector housing.
One or several drives/devices can be connected to the SIMOLINK
Encoder. When the SIMOLINK Encoder is operated in conjunction with
one drive/device, the GND signal should be connected in the cable. If
several drives/devices are connected to the SIMOLINK Encoder, the
GND signal should not be connected; it must be noted in this respect
that large deviations in the 0 V (GND) on different drives/devices can
cause disturbances or malfunctions on the RS422 bus.
The signal generator forms three signals, two with a phase
displacement of
±
90° and one as a zero pulse. The pulse/pause ratio
of the two phase-displaced signals is 1:1 in each case. The pulse width
of the zero pulse is ¼ of a period of the phase-displaced signals (pulse
width 90° el.).
NOTICE
CAUTION
