two things happen: 1) The alarm relay output is enabled (so if you have a strobe light connected, as explained above, it will activate) and 2) The digital output is also turned on. The digital output is explained below and is typically connected to a recording device, such as a DVR....
Symbol of an overload relay Symbol of a thermal OLR Here 1, 2, 3, 4, 5 and 6 are power terminal 95 & 96 are trip contacts and 97 & 98 are signaling contacts. Learn how to use them in a circuit here:Star-Delta starter wiring diagram – Control and power wiring diagrams Frequently ...
Next, an installation example of the relay module40and the relay blocks10to the electric coupling box will be explained with reference to FIGS. 1 and 2. As shown in FIG. 2, the relay module40is installed on the installation part of the case main body11, and the cover12covers the case...
The LEDs are explained in Figure 5 and Table 1. 79 EN INST RS LO ABCN FAULT TYPE Figure 5 SEL-551/SEL-551C Status and Trip Target LEDs Table 1 SEL-551/SEL-551C Front-Panel Target LED Definitions Target LED Function EN Relay powered and self-tests are okay INST Trip due to ...
Fig. 2 is a wiring diagram of the range changing potential circuit for such a wattmeter. Fig. 3 shows the air gap arrangement of a wattmeter and, in general, a representation of the air gap fields produced by the stationary and moving coils, assuming no distortion. Fig. 4 is similar to...
As with conventional wiring, you use contacts and relays in the easy circuit diagram. With easy, however, you no longer have to connect up components individually. At the push of a few buttons, the easy circuit diagram produces all the wiring. All you have to do is then connect any ...
of a mobile station between relay stations within a same base station, and FIG. 6 describes in detail the process of handover from a base station to a relay station within a same base station. The main steps and contents thereof have been explained in the description of above flow charts....