Hardware manual

LT-4201TM/4301TM Hardware Manual
81
Power Supply Connections
For maintenance purposes, use the following connection diagram for the power
supply connection. However, when terminals A2 and B2 (signal name: Q1, Q0) are
wired to external I/O, use the same power source for external I/O and the LT.
When wiring terminals A2 and B2 (signal name: Q1, Q0) to external I/O.
NOTE:
z When connector A2 and B2 (Signal Name: Q1, Q0) are wired to external I/O, turn
on the LT before turning on the external device. Otherwise the wrong signal for
Pulse Output, PWM Output and High-speed Counter (Synchronize Output) will be
output. When transferring a program that turns off or resets the LT, first turn off
the external device. When using a system with multiple power supplies, please
note there is also a power supply in the external device.
z Ground the surge absorber separately from the rear module.
z Select a surge absorber that has a maximum circuit voltage greater than the peak
voltage of the power supply.
The diagram illustrates a lightning surge
absorber connection:
8QLW
3RZHUSOXJ
0DLQ
3RZHU
8QLW
3RZHU
,2
3RZHU
,28QLW
7HUPLQDOEORFNV
8QLW
3RZHUSOXJ
0DLQ
3RZHU
6\VWHP
3RZHU
,28QLW
7HUPLQDOEORFNV
9
9
4RU4
/7
9GF
9DF
$&'&


([WHUQDO'HYLFH


)*
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