Chapter 3 Hardware Structure
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+24V
terminal locking screws
power ground
protection ground
Locking screws for power cables
Figure 3-7 DC Power connection
AC Power input terminal
：
AC220V: Single-phase three cores wire is used to for power connection. The terminal
integrates a fuse socket which is convenient to fix new AC power fuse. Steps of
replacing fuse are as follows:
1. Pull-out fuse holder from the AC power outlet as shown in Figure 3-8a. Push a 2A
fuse into the holder, and also can put a standby fuse into spare slot.
2. As shown in Figure 3-8b, insert the fuse holder into AC power outlet.
Figure 3-8a STEP 1
