In reference to the CR11 relay, I'm assuming the wire location placement on the terminals is critical? In other words, could a different type of relay have different wire placement on the terminals?
Well M, since we're doing Genie schematics class, and Voodoo has been doing all the teaching, it's about time I made a contribution.
The first thing we need to understand is all schematics, unless otherwise stated, are drawn/shown in power off condition, nothing powered up or operated. That's where the term "normal" comes into play. For example, when you see a contact that's referred to as NC (normally closed), that means that in a no power state, machine not running, that contact connection is closed. Normal indicates machine at rest, not in use.
There are various type relays used on machines, the terminals have specific purposes depending on what type of relay it is. On your schematic, you'll see reference to several relays. PR, such as PR1, are power relays, typically solenoid type relays, larger terminals for power in/out, small terminals for wires that control the relay operation. CR, such as CR11, are control relays, typically Bosch cube type or Potter Brumfield clear "ice cube" relays.
Look at post #24 by Voodoo, that's a Bosch cube type relay at top of illustration. On those relays, terminals 85 and 86 are the terminals that operate the relay. Terminal 30 is the contact connection for relay contact. This contact will connect to terminal 87 or 87A depending on whether relay is powered up or not by coil inside. In normal state, no control power on 85/86, terminal 87A is NC with terminal 30, likewise, in normal state, terminal 87 is NO (normally open) with 30. When you power up the relay with 85 and 86, the coil switches the contact, now the relay is not in normal state, rather switched, and terminal 87 NO connects to 30, and terminal 87A NC breaks it's connection to terminal 30.
Look at the connections to Precision Governor on your schematic. You'll see a wire coming from terminal 1 of Prec Gov controller go to CR11 (control relay 11). That wire connects to terminal 30 of CR11 relay as diagram shows that connection is not the contact connect that breaks inside, the opposite connection does. Since the drawing notes the relay is CR11 NC, that means the other wire connects to 87A of the relay, the NC connection, and goes to terminal 5 of Prec Gov controller.
To view the coil that operates CR11, terminals 85 and 86, you have to go to next page of PDF diagram of your machine and find the coil there.
