IC-HF Datasheet, PDF (26/36 Pages) IC-Haus GmbH – 6-CH. ENCODER LINK, RS-422 DRIVER/RECEIVER

iC-HF
preliminary
6-CH. ENCODER LINK, RS-422 DRIVER/RECEIVER
Rev C1, Page 26/36
iC-MH is a BiSS slave. If FMSEL1 from iC-HF is set
hi, A/B/Z and BiSS/SSI mode is selected and iC-HF
can be used to communicate through BiSS with iC-MH.
This is shown in figure 29.
Signals U, V, and W are replaced by BiSS signals MA,
SLO, and SLI. Input RS-422 signals at channels 5 and
6 in the example include the adaptation resistors, to-
gether with the RS-422 bus termination resistor. See
page 22 for more information about RS-422 receiver
configuration.
INCR INTERFACE
SERIAL
INTERFACE
VPD
VPA
RS422
A
B
Z
U
V
W
MA
SLO
SLI
ERROR MONITOR
NERR
VND
VNA
iC-MH
1 μF
SLO
MA
SLI
VDDS
GNDS
REVERSE POLARITY PROTECTION
VDD
GND
X1
NX1
X2
NX2
X3
NX3
X4
X5
X6
PTC
ECM
OEN
FMSEL1
FMSEL2
NERRI
BYP
EBIS TRI
CONTROL
LOGIC
OVT
PoDo
1
RS422 Output
Q1
TRI
NQ1
Q2
RS422 output
NQ2
Q3
RS422 output
NQ3
Q4
RS422 output
NQ4
RS422 Input
Q5
+
_
NQ5
RS422 Input
Q6
+
_
NQ6
BYPR
ENCODER LINK
REQUEST
DETECTION
OVT
PoDo
OVERTEMP
POWER DOWN
Q1
NQ1
NERR
iC-HF
4..5.5V
1 μF
A
B
Z
SLO
MA
SLI
to uC _NERR
Figure 29: Example application with iC-MH in A/B/Z and BiSS/SSI mode