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4.3 Secondary Circuit Wiring
The interfaces of the secondary circuit cables are mainly in the control room. And the control room is located in
the right side of the front side of power cell cabinet.
There are terminal rows XS1T-XS4T, XS11T-XS18T, respectively above and below the interface board in the
control compartment, used to connect with customers’ interface. At the bottom of the compartment, there are also
two terminal rows XT3, XT4 used for control power wiring.
XT3 terminal row
XT4 terminal row
Controller
I/O board
4.3.1 Terminal Row Above Interface Board
The upper terminals are connected with the remote control and the switch input signals of the site, etc, as Fig. 4-4
and Fig. 4-5, among which, the analoginput has one channel, 4~20mA current input, load impedance required to
lower than 500Ω; remote control supports level and pulse two kinds of signals, able to be set through “Remote
start/stop mode” in the HMI; “switch activate signal” only applicable in the synchronous transfer switch function.
Fig.4-3. Contorl room layout
