CPWR-AN26, Rev A, 08-2018
Copyright © 2018 Cree, Inc. All rights reserved.
The information in this document is subject to change without notice.
Cree and Zero Recovery are registered trademarks, and the Cree logo and C3M are trademarks, of Cree, Inc
Please take the following steps before starting the unit for the first time:
•
Check sensing connections (shown in Table 8) from the power board to the controller
board
Table 8: Sensing connections from Power Board to the Control Board
•
Put PWM ON/OFF switch (sw2) in OFF position.
•
Put mode switch (sw1) in DC/AC position (i.e. 1).
•
For all digital logic supply inputs, the white wire is positive (+) and the blue wire is
negative (-)
•
Connect +7V supply to connector J7 (positive (+) to pin 1 and negative (-) to pin 2).
Check that the current drawn is approximately equal to the values specified under
“Current 1” in
Table 5.
•
Check for +3.3V (across CT2), +1.2V (across CT1), and +5V (across CT3) supplies on
control board.
•
Connect and switch ON both +15V and +15V_1 power supplies. Check the current
drawn from both 15V power supplies. The current drawn should be approximately
equal to the values specifi
ed under “Current 1” in
Table 5.
•
Put PWM ON/OFF switch (sw2) in ON position.
•
Check the following pulses on control board connectors (for purposes of the following
chart, Conn2 is marked as 2, Conn3 is marked as 3, Conn4 is marked as 4 and Conn5 is
marked as 5):
