Brick Motion Controller Hardware Reference Manual
System Wiring
13
J5 Limit Inputs (5-8 Axis)
The Brick Motion Controller limit and flag circuits give the flexibility to wire in standard 12V to 24V
limits and flags or wire in 5V level limits and flags on a channel basis. The default is set for the standard
12V to 24V inputs, but if the resistor pack is added to the circuit, the card can read 5V inputs.
Note:
J5 comes only with the 8-axis configuration.
J5 Limit Inputs
(Female DB-25
Connector)
2
3
4
5
14
15
16
17
1
6
7
18
19
8
9
20
21
10
11
22
23
12
13
24
25
Pin #
Symbol
Function
Description
1
USER5
Input
User Flag 5
2
MLIM5
Input
Negative Limit 5
3
FL_RT5
Input
Flag Return 5
4
USER6
Input
User Flag 6
5
MLIM6
Input
Negative Limit 6
6
FL_RT6
Input
Flag Return 6
7
USER7
Input
User Flag 7
8
MLIM7
Input
Negative Limit 7
9
FL_RT7
Input
Flag Return 7
10
USER8
Input
User Flag 8
11
MLIM8
Input
Negative Limit 8
12
FL_RT8
Input
Flag Return 8
13 GND
Common
14 PLIM5 Input
Positive
Limit
5
15 HOME5 Input
Home
Flag
5
16
BEQU5
Output
Compare Output, EQU 5, signal is TTL (5V) level
17 PLIM6 Input
Positive
Limit
6
18 HOME6 Input
Home
Flag
6
19
BEQU6
Output
Compare Output, EQU 6, signal is TTL (5V) level
20 PLIM7 Input
Positive
Limit
7
21 HOME7 Input
Home
Flag
7
22
BEQU7
Output
Compare Output, EQU 7, signal is TTL (5V) level
23 PLIM8 Input
Positive
Limit
8
24 HOME8 Input
Home
Flag
8
25
BEQU8
Output
Compare Output, EQU 8, signal is TTL (5V) level
If J5 is present and RP89 (limits 5), RP93 (limits 6), RP97 (limits 7) and RP101 (limits 8) are installed to the
unit, the voltage level of the flags can be lowered to 5V. User needs to specify these when ordering the unit.
RP89, RP93, RP97 and RP101 for 5V flags: 1Kohm Sip, 8-pin, four independent Resistors
RP89, RP93, RP97 and RP101 for 12-24Vflags: Empty bank. (Default)
SSee Appendix B for Schematic
Limit and Flag Circuit Wiring
The Brick Motion Controller allows the use of sinking or sourcing position limits and flags to the
controller. The opto-isolator IC used is a PS2705-4NEC-ND quad phototransistor output type. This IC
allows the current to flow from return to flag (sinking) or from flag to return (sourcing).