NSI-SC-5911-4
Antenna Range Controller (ARC), 4-Axis
The NSI-SC-5911-4 Antenna Range Controller (ARC) is a 4-axis stepper motor control interface allowing control of up to 4 motors or motion stages. In a typical antenna measurement system, these axes would enable computer-controlled motion in X, Y, Z and POL (probe rotation) directions. Below is a block diagram of such a typical antenna measurement system, showing how the ARC connects to the other system components. The ARC is typically controlled by a general-purpose digital I/O card located in the NSI motion controller, but can also be controlled directly by TTL step and direction commands from other sources.
ARC in Typical Application
SPECIFICATIONS
- 4 axis control
- Stepper motor control for motors up to 7 amps
- Forward/reverse limit switch interface for each axis
- Control of locking brake, used for braking Y-axis motion when powered off
- Safety interlock system
- Parallel I/O interface for PC control
- 8 bits parallel output on DB25f auxiliary ports
Rear Panel of ARC
DB37 Computer Control Connector J5
Pin |
Signal Name |
Function |
Pin |
Signal Name |
Function |
1 |
NC |
|
20 |
VCC |
From PC |
2 |
NC |
|
21 |
GND |
Common |
3 |
PB7 |
Axis 4 Step |
22 |
PC7 |
Axis 4, + Lim |
4 |
PB6 |
Axis 4 Dir |
23 |
PC6 |
Axis 4, - Lim |
5 |
PB5 |
Axis 3 Step |
24 |
PC5 |
Axis 3, + Lim |
6 |
PB4 |
Axis 3 Dir |
25 |
PC4 |
Axis 3, - Lim |
7 |
PB3 |
Axis 2 Step |
26 |
PC3 |
Axis 2, + Lim |
8 |
PB2 |
Axis 2 Dir |
27 |
PC2 |
Axis 2, - Lim |
9 |
PB1 |
Axis 1 Step |
28 |
PC1 |
Axis 1, + Lim |
10 |
PB0 |
Axis 1 Dir |
29 |
PC0 |
Axis 1, - Lim |
11 |
GND |
Common |
30 |
PA7 |
AUX Ctrl |
12 |
-5 V |
From PC |
31 |
PA6 |
AUX Ctrl |
13 |
GND |
Common |
32 |
PA5 |
AUX Ctrl |
14 |
-12 V |
From PC |
33 |
PA4 |
AUX Ctrl |
15 |
GND |
Common |
34 |
PA3 |
AUX Ctrl |
16 |
+12 V |
From PC |
35 |
PA2 |
AUX Ctrl |
17 |
GND |
Common |
36 |
PA1 |
AUX Ctrl |
18 |
VCC |
From PC |
37 |
PA0 |
Trigger / |
19 |
GND |
Common |
|
|
|
Pinouts for Rear Panel Connectors J1, J2, J3, J4
Pin number |
Signal name |
Description |
1 |
Ø 3 current |
Stepper motor pulse current |
2 |
Ø 1 current |
Stepper motor pulse current |
3 |
Ø 2 current |
Stepper motor pulse current |
4 |
Ø 4 current |
Stepper motor pulse current |
5 |
Ø2 and Ø4 common |
Current pulse return |
6 |
Ø1 and Ø3 common |
Current pulse return |
7 |
+24 V DC |
Fan and other uses |
8 |
Ground |
Chassis ground |
9 |
Enable |
External driver pack |
10 |
Limit return |
Axis limit checking |
11 |
- limit |
Axis limit checking |
12 |
+ limit |
Axis limit checking |
13 |
Unused |
|
14 |
Ground for 24 V |
DC return for +24 V |
15 |
+ 5 V DC |
|
16 |
+5 V return |
|
17 |
Direction |
Used for external driver |
18 |
Step |
Used for external driver |
19 |
Step/direction return |
Used for external driver |
ORDERING INFORMATION
19730 Magellan Drive, Torrance, CA 90502, USA, Tel: 310.525.7000, Fax: 310.525.7100
Email: sales@nearfield.com. Visit our website: www.nearfield.com