JVL MAC050 User Manual page 88

4.2 Expansion Modules MAC00-B1/B2/B4
4.2.6 RS232 - General description when using a MAC00-Bx module
The RS232 interface is consid-
ered the main interface to the
motor when the motor is set
up using the MacTalk win-
dows software from a PC or
from any kind of controller us-
ing a RS232 interface.
Note:The basic MAC motor
does not fully support RS232
since the interface signals are
only 5V levels. See also the ba-
sic description - Serial interface,
page 69.
When connecting the RS232
interface to a PC or control-
ler, the following rules must
be followed:
1 Ensure that Tx-PD is con-
nected to TX on one of the
units in the system. Note
that the B1, B2 and B4
modules all contain a termi-
nation resistor which can be
activated.
2 Use screened cable.
3 Ensure that GND is also
connected.
4 Ensure that all units have a
proper connection to safety
ground (earth) in order to
refer to the same potential.
5 Ensure that the supply lines
are connected individually
in order to minimise the
voltage drop between the
motors.
6 Master Controller RS485
interface:
If available, it is strongly rec-
ommended a type with op-
tical isolation is used.
7 The interface cable length
should not exceed 10 me-
tres.
Connectors:
Please read the individual de-
scription for the MAC00-B1,
B2 or B4 to see the RS232
connector layout.
84 JVL Industri Elektronik A/S - User Manual - Integrated Servo Motors MAC050 - 800
RS232 network with 2 x MAC140 and 1 x MAC800
mounted with MAC00-B1, B2 or B4 modules.
Central
Make sure that all
involved units are
Controller
connected to the same
(for example a PC)
potential
Opto isolation *
Screen connected
to GND in each end
MAC50-141
Motor
*** Address=1
Rx
Tx
RS232
**
Interface
Tx-PD
GND
Power
Supply
Control voltage
Only MAC50-141
with B2 or B4
MAC50-141
Motor
*** Address=2
Rx
Tx
RS232
Interface
Tx-PD
GND
Power
Supply
Control voltage
Only MAC50-141
with B2 or B4
MAC800
Motor
*** Address=3
Rx
Tx
RS232
Interface
Tx-PD
GND
Power
Supply
Main supply
Up to 7
Motors
* Opto isolation is recommended.
** At least one unit on the line must be terminated. The MAC00-B1, B2
and B4 contain this feature. See the individual module descriptions.
*** Each unit connected must be setup with an address via The MacTalk program.
If only one unit is connected no address is needed.
Power supply
P+
P-
O+
P+
P-
O+
P+
Max. 32VDC !
P-
Mains 230VAC
TT0907GB