RS V8849 Hoja De Instrucciones página 7

General
This board is designed to control one or two stepper motors via stepper
motor drive boards. The board is programmed from a RS-232 serial link
with a suitable programming device which can produce ASCII
characters i.e. personal computer, Psion Organiser II etc. If
communication with additional control boards is required then the extra
control board can be "daisy chained" using the slave RS-232 channel.
Both axis of control can be moved at the same time allowing linear and
circular interpolation, other features like alpha numeric display driver
and hand control of the stepper motor from a mouse or digital
potentiometer are also provided.
The board is supplied with 20K of user RAM. This can be upgraded to
non-volatile RAM if stand alone operation is required. If user I/O is
required standard opto isolators can be fitted for the number I/O to be
utilized, these can be used for control functions such as hand shaking
with a PLC, activating a relay or reading sensors.
Specification
Axis 2 axis both can be moved at the same time
and completely independent of each other
Board supply
Velocity 0.002 steps/second to 60,000 step/second
Acceleration
Position range
Period of acc/dec
User input voltage
User output current Dependent on the opto coupler's utilised
Limit voltage/current
Usable ambient
temp range
Acceleration range
Din 41612 64 Way Connector Pin Out
LCD
DRIVER
HAND ENCODER
INPUTS
LIMIT
INPUTS
MOTOR
DRIVE
OPTO
OUTPUTS
OPTO
INPUTS
RS Stock No.
Control board
Control software
5V regulated d.c. typically 600mA
250000 steps per second ie 1/6 rev.
per second upwards
+ - 2,000,000,000
acc/dec has to occur within 4 sec
5-15Vd.c.
5-15V of 2mA
0-40°C
2
0.5 steps/sec to 250M steps/sec
5V supply
N/C
N/C
LCD bit 4
LCD bit 6
LCD reg select
LCD enable
Y axis B phase
X axis B phase
Pos Y limit (-)
Neg Y limit (-)
Pos X limit (-)
Neg X limit (-)
X axis direction
X axis clock
Output 0 (-)
Output 1 (-)
Output 2 (-)
Output 3 (-)
Output 4 (-)
Output 5 (-)
Output 6 (-)
Output 7 (-)
Input 0 (-)
Input 1 (-)
Input 2 (-)
Input 3 (-)
Input 4 (-)
Input 5 (-)
Input 6 (-)
Input 7 (-)
0V supply
RS-232
Three wire Xon, Xoff with software hand shake 1200-19200 baud (7 or
440-098 8 data bits, 1 or 2 stop bits, odd, even or no parity).
Memory size (RAM) user space 20K.
440-105
User Upgradable Parts
Non-volatile memory RS stock no.
This is only required if the control board is likely to lose power at any
time, therefore suffering loss of it's program. RS stock no. 659-781
provides 32K x 8 bits of memory, usually adequate for most programs
except the very longest. To insert the non-vol. memory remove the
existing RAM chip with the power down and insert the new chip, making
sure it is correctly orientate.
User I/O opto couplers
Darlington output opto coupler RS stock no.
This should be inserted in the relevant chip sockets as indicated on the
board layout, in the correct orientation. When these devices are
inserted the relevant outputs can then be programmed for driving other
equipment in the system. The typical output current is 10-20mA
depending on the voltage used i.e. 5-15V.
Installation Recommendations
The board can be mounted in two ways:-
1. Incorporated within a standard eurocard format racking system
along with suitable stepper drivers.
Basic racking (RS stock no. 500-392) kM6-II Subrack System.
2. Surface mounting using the two holes provided on the p.c.b. and the
two holes accessible when the connector nuts and bolts are
removed. Plastic spacers should be used to prevent metal screws or
washers shorting tracks on the p.c.b.
2
b
1o
2o
3o
4o
5o
6o
7o
8o
9o
10o
11o
12 o
13 o
14 o
15 o
16 o
17 o
18 o
19 o
20 o
21 o
22 o
23 o
24 o
25 o
26 o
27 o
28 o
29 o
30 o
31o
32 o
659-781
590-430
a
o1 5V supply
o2
o3
o4 LCD bit 5
o5 LCD bit 7
o6 LCD R/W
o7
o8 Y axis A phase
o9 X axis A phase
o10 Pos Y limit (+)
o11 Neg Y limit (+)
o 12 Pos X limit (+)
o 13 Neg X limit (+)
o 14 Y axis direction
o 15 Y axis clock
o 16 Output 0 (+)
o 17 Output 1 (+)
o 18 Output 2 (+)
o 19 Output 3 (+)
o 20 Output 4 (+)
o 21 Output 5 (+)
o 22 Output 6 (+)
o 23 Output 7 (+)
o 24 Input 0 (+)
o 25 Input 1 (+)
o 26 Input 2 (+)
o 27 Input 3 (+)
o 28 Input 4 (+)
o 29 Input 5 (+)
o 30 Input 6 (+)
o 31 Input 7 (+)
o 32 0V supply
V8849
N/C
N/C
N/C
7