Programmable optical
absolute multi-turn shaft encoders
BMC/BMD parallel
assignment
signals for parallel input interface
1 - 24
24 parallel output signals.
Designation parallel
D0 - D23
Data lines D0 to D23. With PNP, pull down;
with NPN, 4.7 kΩ pull up resistors recom-
mended for each data line.
cable
connector
signal
cable color
37-pin
1
27 ZERO
Zero setting input for setting a zero at any point
within the programmed encoder resolution.
ThezerosettingprocessistriggeredbyaHIGH
pulse and should take place after direction of
rotation selection (F/R). For maximum interfer-
ence immunity after zero setting, connect to
GND. Pulse duration ≥ 100 ms.
D0
WH
BN
GN
YE
GY
PK
white
2
D1
brown
green
yellow
grey
3
D2
4
D3
5
D4
6
D5
pink
7
D6
BK
VT
black
violet
28 ENABLE
29 STORE
If this input is at LOW level, the output drivers
will be activated. On application of HIGH po-
tential (or unconnected), the output drivers
assume a HIGH-resistance state.
8
D7
9
D8
GY/PK grey/pink
RD/BU red/blue
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
-
WH/GN white/green
BN/GN brown/green
WH/YE white/yellow
YE/BN yellow/brown
WH/GY white/grey
GY/BN grey/brown
WH/PK white/pink
PK/BN pink/brown
WH/BK white/black
BN/BK brown/black
GY/GN grey/green
YE/GY yellow/grey
PK/GN pink/green
YE/PK yellow/pink
By applying a LOW level, the data of the
absolute encoder will be buffered. If this input
is connected to HIGH potential or remains
open, the current position data of the abso-
lute encoder will be switched through to the
output drivers. For reliable readout of the
data, this line must be used in the case of
Binary-Code.
30 F/R
By applying a HIGH potential, ascending val-
ues will be output when the shaft rotates cw
(looking at shaft). If LOW potential is applied,
descending values will be output.
-
-
-
-
34 GND-Sense This contact is connected internally to GND
and assists, together with Vs-sense, to meas-
ure the supply voltage at the encoder via the
follow-up electronic.
-
ZERO
YE/BU yellow/blue
ENABLE BN/BU brown/blue
STORE BN/RD brown/red
F/R
-
-
-
35 Vs-Sense This contact is connected internally to +Vs.
If the sensor line is not to be used, this contact
must be isolated (danger of short circuit).
GN/BU green/blue
-
-
-
-
-
-
36 +Vs
Supply voltage.
37 GND
Ground connection to encoder.
GND-Sense WH/BU white/blue
-Sense WH/RD white/red
VS
+VS
RD
BU
red
blue
GND
Screen: In the case of encoders with cable output, the
screen is connected to the housing.
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IVO [ BAUMER IVO GMBH & CO. KG ]
