9
Original notice - T1.10
IB-P03
T
echnical
documenTaTion
4. w
irings
4.1 - w
irings
for
Power
In case that installation of overcurrent protection to DC power supply is necessary, some power supplies need
to be installed with a specific overcurrent protection in the specifications to conform to safety standards (such as
UL60950-1).
In case that there is a requirement for overcurrent protection
DC power supply
Overcurrent
protection
(Overvoltage category 2)
(Overvoltage category 3)
IB
Overcurrent
protection
Factory
AC power
Install an overcurrent protection to 24V DC line if any power supply other than limited power source is used.
Installation of overcurrent protection
ESM safety system
according to local
safety rules
Overcurrent
protection
Overcurrent
protection
Motor
Ethernet
Overcurrent
protection
Overcurrent
protection
Control
IB
24V
24V
0V
0V
DC Power supply
DC Power supply
AC Power
at factory
SW1
EMS contact
• An EMS safety system should be installed according to risk analysis of the machine. EMS relay is a safety
function and must not be used as run/stop signal.
• EMS relay contact must be set before DC motor power supply, to avoid any electrical noise (contact bounce,
arching, etc…) that could damage electronic devices.
