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Hardware reference
HARDWARE REFERENCE MANUAL
155
Revision 5.0
3. Turn the power on.
Power supply connector
fig. 79
The GRT1-ML2 has 2 24 VDC power supply terminals:
/i
Note
Make sure that the address is unique in the MECHATROLINK-II
network. If two or more units have the same MECHATROLINK-II
address, they cannot be initialized properly.
Note
To make the MECHATROLINK-II address of the unit valid, do one
of these steps:
•
Restart the TJ2-MC__.
•
Execute the command
MECHATROLINK(unit,0)
.
UNIT
+V
-V
+V
-V
DC24V
INPUT
I/O
A
24 VDC
24 VDC
B
Label Power supply terminal Description
A
Unit power supply
terminal
Power supply to the internal circuits of the GRT1-ML2
and to the internal circuits of the connected SmartSlice I/
O Units (through the SmartSlice bus)
B
External I/O power
supply terminal
Power supply to the external I/Os connected to the
SmartSlice I/O Units
Note
The unit power supply and the external I/O power supply are not
transferred through the GCN2-100 Turnback cable. The
GRT1-TBR units have the same power supply terminals as the
GRT1-ML2.
Note
The unit power supply is isolated from the external I/O power sup-
ply. Please use 2 separate power-supplies to keep this isolation.