JVL MAC050 User Manual page 148

5.2 Expansion Module MAC00-B1/B2/B4
5.2.6 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 -
page 111.
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 termination 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 re-
fer 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 opti-
cal isolation is used.
7: The interface cable length
should not exceed 10 metres.
Connectors:
Please read the individual de-
scription for the MAC00-B1,
B2 or B4 to see the RS232
connector layout.
144
Serial interface,
JVL A/S - User Manual - Integrated Servo Motors MAC050 - 4500
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
Rx
Tx
**
Tx-PD
GND
Control voltage
Only MAC50-141
with B2 or B4
MAC50-141
Motor
Rx
Tx
Tx-PD
GND
Control voltage
Only MAC50-141
with B2 or B4
MAC800
Motor
Rx
Tx
Tx-PD
GND
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
*** Address=1
RS232
Interface
P+
Power
Supply
P-
O+
*** Address=2
RS232
Interface
P+
Power
Supply
P-
O+
*** Address=3
RS232
Interface
P+
Power
Max. 32VDC !
Supply
P-
Mains 230VAC
TT0907GB