8
2.4.1.12 Fuse and Switch
There is a fuse holder with a 2 amp fuse (3AG type) for the AC line located on the front panel which is
easily removed without using any tools. Also there is a rocker switch used to power on and off the
controller unit.
2.4.1.13 Active LED
This LED is used to indicate the status of the controller as defined for the application running into the
controller. When the application uses the voltage monitor and fault monitor signals, it must be changing
the status of this line in order to indicate that the controller is alive; if status does not change within a 2
seconds period then these lines are activated.
2.4.1.14 Connector Box with A, B, C and D Connectors
The ATC eX NEMA controller is a TS2 Type 1 controller that can be converted to a TS2 Type two
controller by adding an optional connector box in order to support the functionality of the A, B, C
connectors of the TS1 standard plus the special configuration D connector.
Currently there are two optional boxes, the Standard McCain connector Box and the Traconex compatible
box. The only one difference between them is the special configuration D connector.
Notes:
See appendix E for details on the pin assignments.
See “Configuration” section to see the details when attaching the box to the ATC eX NEMA controller.
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