ZNRG2061 Evaluation Kit User Manual
© 2017 Integrated Device Technology, Inc.
6
March 29, 2017
Ref.
Name
Connector Label
Function
5
AFD
AFD (X2-5 on X2)
Arc-fault detection output. It is indicated by the AFD LED on board. See Figure 4.
6
AFS
AFS (X2-4 on X2)
Arc feature signal output; it is indicated by the AFS LED on board. See Figure 4.
7
Jumper
SJ1
Connection to Arc Fault Test circuitry. See section 2.2.
8
RA+
RA+ (X2-9 pin on X2)
Connect RA+ and RA- to the leads for the primary of current transformer. See
Figure 4.
RA-
RA- (X2-10 pin on X2)
9
VIN+
VIN+
External power supply connector (X1-2).
10
GND
GND
GND pin when using external power supply (X1-1).
11
LEDs
POWER LED
See section 1.4.
AFS LED
See reference 6 above.
AFD LED
See reference 5 above.
Figure 4 shows pin assignments for the terminal blocks on the Evaluation Board and the details of the connections to the current transformer.
The current transformer included in the kit has 100 turns for both the secondary and auxiliary windings on a T80-26 toroidal core that is
available from Micrometals or KDM. Figure 3 shows a picture of the transformer. Additional transformers can be ordered from Precision, Inc.
at 1700 Freeway Blvd, Brooklyn Center, MN 55430 (
http://www.precision-inc.com/
).
The RA+/RA- signals are output by the arc test circuitry on the Evaluation Board to the coil.
Figure 3. 100:100-Turns Current Transformer
