sat-nms ACU2-19V2 User Manual

J10 Drive Interface

Connector Type: D-Sub25 female

The ACU2-19V2 provides a digital signal interface based on 24V signal level for an external drive cabinet.

pin	signal	description	type
1	Az CW	Azimuth CW Cmd	OUT
2	Az Com	Azimuth Common (0V)	IN
3	Az CCW	Azimuth CCW Cmd	OUT
4	El UP	Elevation Up Cmd	OUT
5	El Com	Elevation Common (0V)	IN
6	El DWN	Elevation Down Cmd	OUT
7	Pl CW	Pol CW Cmd	OUT
8	Pl Com	Pol Common (0V)	IN
9	Pl CCW	Pol CCW Cmd	OUT
10	Sum Lim	Sum Limit (+)	IN
14	Az FLT	Az Fault (+)	IN
15	El FLT	El Fault (+)	IN
16	E-Stop	E-Stop (-)	IN
17	Com FLT	Az El Fault Common(-)	IN
18	Sum Lim	Sum Limit (-)	IN
19	E-Stop	E-Stop (+)	IN
21	Az HSP	Azimuth high Sp Cmd	OUT
22	El HSP	Elevation high Sp Cmd	OUT
23	DRV EN	Az/El Drive Enable Cmd	OUT
24	MAINT	Maintenance (+)	IN
25	MAINT	Maintenance (-)	IN

J21 Analog beacon level input

Connector Type: D-Sub9 female

The ACU2-19V2 preferably is used together with the sat-nms LBRX beacon receiver. With the sat-nms LBRX the ACU talks though UDP or TCP over IP, no additional cabling is required in this case. At J21 the ACU2-19V2 provides an analog interface to third party beacon receivers.

pin	signal	description	type
2	IN+	Analog In (0..10V)	IN
3	IN-	Analog In GND	OUT
7	SHLD	Shield

J6, J7 and J8 Polarisation and Az/ El Angle encoders

Connector Type: J7,J8 D-Sub25 male, J6 D-Sub9 male

The sat-nms ACU2-19V2 provides the possibility to connect two different types of angle encoders at the azimuth, elevation and polarization axis: optical SSI encoders (S) and Resolvers (R).

You have to decide at point of order which variant you want to have. The angle encoder type is specified by an add-on to the name of the unit. The sequence is azimuth, elevation, polarization

An example: ACU2-19V2-SSR contains SSI interfaces at azimuth and elevation axis and an resolver interface at polarization axis.

SSI encoder interface J7, J8

The SSI positional encoder may be powered from the ACU internal power supply. +24V is provided as standard at the connector. To avoid ground loops, the cable shield should be connected either to pin 17 at the ACU or to the ground at the encoder housing, never at both ends. The power supply outputs are internally fused. Be aware not to cause a short circuit. If this happens, the unit has to be opened and the fuse has to be replaced. Do not open the unit by yourself, you will loose warranty in that case.

pin	signal	description	type
15	Clk+	SSI clock	OUT
16	Clk-	SSI clock	OUT
17	SHLD	Shield
21	Data+	SSI data	IN
22	Data-	SSI data	IN
23	SHLD	Shield
24	+24V	encoder power supply
25	0V

Resolver interface J7, J8

The ACU resolver interface is designed for resolvers with an impedance of 100 Ohms or more and transfer factor 0.5. The interface applies 4Veff / 2000Hz to the resolver drive coil. It expects 2Veff at the sine / cosine inputs at the maximum positions.

When connecting a resolver to the ACU, please consider the following:

Use a shielded, twisted pair cable.
Connect the cable shield either to the case of the DSub9 connector or to the ground at the resolver housing. Never connect the shield at both ends, this will introduce a ground loop and cause a significant degradation of the resolver’s accuracy.

pin	signal	description	type
1	SHLD	Shield
2	REF	drive signal to resolver	OUT
3	COS-	resolver COS	IN
4	SIN-	resolver SIN	IN
5	COS	resolver COS	IN
6	SHLD	Shield
7	SHLD	Shield
8	REF-	drive signal to resolver	OUT
9	SIN	resolver SIN	IN

J5 Resolver interface (Option 4th Axis)

Connector Type: D-Sub9 female.

When connecting a resolver to the ACU, please consider the following:

Use a shielded, twisted pair cable.
Connect the cable shield either to the case or pin 1,6,7 of the DSub9 connector or to the ground at the resolver housing. Never connect the shield at both ends, this will introduce a ground loop and cause a significant degradation of the resolver’s accuracy.

pin	signal	description	type
1	SHLD	Shield
2	REF	drive signal to resolver	OUT
3	COS-	resolver COS	IN
4	SIN-	resolver SIN	IN
5	COS	resolver COS	IN
6	SHLD	Shield
7	SHLD	Shield
8	REF-	drive signal to resolver	OUT
9	SIN	resolver SIN	IN

Resolver interface J6

When connecting a resolver to the ACU, please consider the following:

Use a shielded, twisted pair cable.
Connect the cable shield either to the case or pin 1,6,7 of the DSub9 connector or to the ground at the resolver housing. Never connect the shield at both ends, this will introduce a ground loop and cause a significant degradation of the resolver’s accuracy.

pin	signal	description	type
1	SHLD	Shield
2	REF	drive signal to resolver	OUT
3	COS-	resolver COS	IN
4	SIN-	resolver SIN	IN
5	COS	resolver COS	IN
6	SHLD	Shield
7	SHLD	Shield
8	REF-	drive signal to resolver	OUT
9	SIN	resolver SIN	IN

SSI encoder interface J6

The SSI positional encoder may be powered from the ACU internal power supply. +24V is provided as standard at the connector. To avoid ground loops, the cable shield should be connected either to pin 4 or 5 at the ACU or to the ground at the encoder housing, never at both ends. The power supply outputs are internally fused. Be aware not to cause a short circuit. If this happens, the unit has to be opened and the fuse has to be replaced. Do not open the unit by yourself, you will loose warranty in that case.

pin	signal	description	type
1	0V
2	Data-	SSI data	IN
3	Clk-	SSI clock	OUT
4	SHLD	Shield
5	SHLD	Shield
6	Data+	SSI data	IN
7	Clk+	SSI clock	OUT
8	n.c.
9	+24V	encoder power supply

TB1 Alarm

Connector Type: D-Sub9 female

TB1 provides a dry contact Alarm Interface for ACU-Alarms and Tracking Alarms

pin	signal	description	type
1	ACU_FLT_NO	(connected to 2 if there is a FAULT)	RELAY
2	ACU_FLT_C		RELAY
3	ACU_FLT_NC	acu alarm (connected to 2 if OK)	RELAY
6	TRK_FLT_NO	(connected to 7 if there is a FAULT)	RELAY
7	TRK_FLT_C		RELAY
8	TRK_FLT_NC	tracking alarm (connected to 7 if OK)	RELAY

TB1-2 Linear/ Circular Switch interface (Option CP/LP)

Connector Type: D-Sub9 female.

The ACU Linear (LP)/ Circular(CP) Switch interface is designed to control the mode switching of an antenna by providing a switch command via relay output and indication inputs via optocouplers. The indication polarity (NC or NO) can be defined in the ACU setup.

When connecting a CP/LP Switch to the ACU, please consider the following:

The relay outputs are designed for 30VDC/ 2A maximum.
If the load for the output is inductive, please don’t forget the free-wheeling circuit.
The optocoupler inputs are designed for 24V only, with an input current of about 10mA.

pin	signal	description	type
1	CP Cmd COM	CP Command Common	IN
2	CP Cmd OUT	CP Command Output	OUT
3	LP Cmd COM	LP Command Common	IN
4	LP Cmd OUT	LP Command Output	OUT
5	n.c.	not connected
6	CP Ind A	CP Indicator Anode	IN+
7	CP Ind K	CP Indicator Cathode	IN-
8	LP Ind A	LP Indicator Anode	IN+
9	LP Ind K	LP Indicator Cathode	IN-

J16, J17 RS422

Connector Type: D-Sub9 female

J16, J17 provides the interface to the external Handheld LCPD (or GD Satcom PMCU with Display)

pin	signal	description	type
1	RS422 GND	RS422 GND	OUT
6	RS422 Tx-	RS422Tx- Angle Info	OUT
19	RS422 Tx+	RS422Tx+ Angle Info	OUT
20	SHLD	Shield

J11 Digital Inputs

Connector Type: D-Sub25 male

The ACU provides digital auxiliary inputs for additional signal detection (e.g. Deice status, ..). When connecting these Inputs to the ACU, please consider the following:

The optocoupler inputs are designed for 24V only, with an input current of about 10mA.

pin	signal	description	type
1	AUX 3 A	Aux 3 Input Anode	IN+
2	AUX 4 A	Aux 4 Input Anode	IN+
3	AUX 5 A	Aux 5 Input Anode (only 4th Axis Option)	IN+
4	AUX 6 A	Aux 6 Input Anode (only 4th Axis Option)	IN+
5	AUX 7 A	Aux 7 Input Anode (only 4th Axis Option)	IN+
6	AUX 8 A	Aux 8 Input Anode (only 4th Axis Option)	IN+
7	Az-Limit CW	Az-Limit CW	IN
8	Az-Limit Common	Az-Limit Common	OUT
9	Az-Limit CCW	Az-Limit CCW	INT
10	El-Limit UP	El-Limit UP	INT
11	El-Limit Common	El-Limit Common	OUT
12	El-Limit DWN	El-Limit DWN	IN
13	+24V Ext	+24V Ext	OUT
14	AUX 3 K	Aux 3 Input Cathode	IN-
15	AUX 4 K	Aux 4 Input Cathode	IN-
16	AUX 5..8 K	Aux 5..8 Input Cathode (only 4th Axis Option)	IN-
17	AUX 5..8 K	Aux 5..8 Input Cathode (only 4th Axis Option)	IN-
18	AUX 5..8 K	Aux 5..8 Input Cathode (only 4th Axis Option)	IN-
19	AUX 5..8 K	Aux 5..8 Input Cathode (only 4th Axis Option)	IN-
20	Pl-Limit CW	IPl-Limit CW	IN-
21	Pl-Limit Common	Pl-Limit Common	OUT
22	Pl-Limit CCW	Pl-Limit CCW	IN
23	Pl2-Limit CW	Pl2-Limit CW	IN
24	Pl2-Limit Common	Pl2-Limit Common	OUT
25	Pl2-Limit CCW	Pl2-Limit CCW	IN

J14 RS232

Connector Type: D-Sub9 female.

These RS232 interface is used to control the ACU from remote where the TCP/IP remote control is not usable. The pin-out is configured as a standard RS232 , which work with a 1:1 Interface cable to the PC. The baud rate can be configured in the ACU Setup. The other protocol settings are: no parity,1 Stop bit.

pin	signal	description	type
1	n.c.	not connected
2	TX	ACU RS232 TX	OUT
3	RX	ACU RS232 RX	IN
4	n.c.	not connected
5	GND	Signal Ground	I/O
6..9	n.c.	not connected

J9 LAN Connector

Connector Type: RJ45 mal

J9 is the Ethernet 10Base-T / RJ45 connector. Use a standard network cable to connect the sat-nms ACU-RMU to an Ethernet hub. If you want to connect your computer and the ACU directly without using a hub, you need a crossover cable for this with swapped RX/TX lines.

pin	signal	description	type
1	TX+	default Ethernet cabling (10Base-T)	OUT
2	TX-		OUT
3	RX+		IN
4
5
6	RX-		IN
7
8

J12 Mains input connector

Connector type: IEC male

The sat-nms ACU2-19V2 already contains all internal needed power supplies. Use any standard cable type with IEC connector. As they are wide-range types it is possible to connect nearly all worldwide available single phase mains. Please refer to chapter Specifications for more detailed informations.