2
SSI-Data+
SSI data
IN
3
SSI-Data-
SSI data
IN
4
SSI CLK+
SSI clock
OUT
5
SSI CLK-
SSI clock
OUT
6
7
+5V
encoder power supply
8
+24V
encoder power supply
CON18, CON19, CON20 Analog Angle Sensor Interface
Below the pinout of an analog type positional sensor interface board is shown. The ACU is
available with resolver, SSI or analog position sensor interfaces. You have to select type of
interface when you order the ACU.
pin
signal
description
type
1
AGND
analog ground
OUT
2
INPUT
A/D converter input
IN
3
REF
reference voltage
OUT
4
AGND
analog ground
OUT
5
+15V (opt)
optional DC out
OUT
6
-15V (opt)
optional DC out
OUT
7
+9V (opt)
optional DC out
OUT
8
GND
digital ground
OUT
4.2.2 Limit switch and emergency switch connection
Limit switches have to be connected directly to the sat-nms ACU-ODM, emergency switch has to
be connected to the terminals bottom right of the cabinet. Please refer to the schematics for the
exact cabling. The ACU treats a closed contact as OK, contacts have to be opened to indicate the
'limit reached' or 'emergency stop' condition. Opening the emergency stop contact disconnects
the frequency inverters, motor drivers or conductors from mains supply immediately.
The pinout of limit switch connector is as follows:
CON16 Limit Switches
The limit switch inputs internally are connected to the external 24V / GND rails. The switches are
connected directly to the input pairs without any external ground or supply cabling. The ACU
treats a closed contact as OK, contacts have to be opened to indicate the 'limit reached'
condition.
(C) 2022, SatService GmbH
www.satnms.com
ACU-ODU-DC-UM-2209 Page 14/67
