HSM-24V
ADwin
4
ADwin
LS Bus, Manual version 1.0, September 2006
3 HSM-24V
The LS bus module HSM-24V provides 32 digital channels which process 24V
signals.
3.1 Hardware
The 32 channels can be set to inputs or outputs in groups of 8. After power-up
all channels are set as inputs.
The module processes a supply voltage of 19V… 29V. The supply connector
plug is placed bottom right (see
) on the module and has each 2 pins for
V
cc
and GND. The supply voltage is led to a fuse (5A, delay-action). Both
ground pins are connected to protection earth PE.
The supply connection is reverse polarity safe.
The channels are designed to process 24V signals typically and are short-
circuit-proof. A signal above 82% of supply voltage is processed as High level,
a signal below 66% as Low level. For each channel there is a LED indicating
the status: LED on relates to High level.
The channels have a permissible operation current of 0mA…150mA. If the
current exceeds 500mA at a channel, the channel is automatically switched
off. An over-current in the range of 150 mA…500 mA may activate the
superheating protection of the driver, i.e. the driver is switched off, including
the corresponding 16 channels.
Each 4 channels have a common GND. The input / output wires are connected
to plug-in blocks of binding posts.
The inputs have a filter causing about 12µs signal delay.
The module is easily snapped onto the DIN top hat rail. The module may be
processed inside a control cabinet only (industrial use).
Fig. 2 – Board
ADwin
HSM-24V
ON
PE|GND
gn / active
rd / ready
Te
rm
.
D
e
vi
ce
A
d
dr
e
ss
1 2 3 4
PE
DIG.I/O
Vcc =
+19...29VDC
GND
GND
GND
GND
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
DIG.I/O
1
2
3
4
5
GND
6
7
8
9
10
11 12
13 14
15 16
GND
GND
GND
BU
S
I
N
BU
S
O
U
T
T5A
