JVL MAC050 - Page 148

144 JVL A/S - User Manual - Integrated Servo Motors MAC050 - 4500
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 - Serial interface,
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.
Central
Controller
(for example a PC)
MAC50-141
Motor
MAC50-141
Motor
RS232 network with 2 x MAC140 and 1 x MAC800
mounted with MAC00-B1, B2 or B4 modules.
MAC800
Motor
Power supply
Tx
Rx
Rx
Rx
P+
P+
P+
Rx
Tx
Tx
Tx
**
P-
P-
P-
RS232
Interface
RS232
Interface
RS232
Interface
Screen connected
to GND in each end
Opto isolation *
** 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.
Make sure that all
involved units are
connected to the same
potential
Up to 7
Motors
Power
Supply
Power
Supply
Power
Supply
Mains 230VAC
Control voltage
Only MAC50-141
with B2 or B4
Control voltage
Only MAC50-141
with B2 or B4
GND
GND
+18-32VDC
(control voltage) +8-48VDC (Bus voltage)
Tx-PD
Tx-PD
Tx-PD
GND
GND
GND
O+
O+
Main supply
ScreenScreen Screen
Max. 32VDC !
* Opto isolation is recommended.
*** Address=1
*** Address=2
*** Address=3
TT0907GB