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I.L. 40-201.9
The secondary winding of transformer T1, on terminals 8 and 9 provides:
The secondary winding of transformer T1, on terminals 4 and 5 provides:
The 6.5 Vac is switched by relay K1, since it is impossible to auctioneer two nonsynchronized ac voltages. Relay
K1 is controlled by status monitor U7. The 6.5 Vac output is biased at -20 Vdc to satisfy the requirements of the
electroluminescent display.
The status monitor U7 checks the health of each power supply by monitoring the +8.5 Vdc outputs of each sup-
ply. The status outputs are normally low, thus, a high output means a failed power supply (Terminal J2/12A,
12C).
Each power supply is capable of delivering a total output of 35 W power, distributed among its six load outputs.
Due to the maximum diode rating of 1A, no individual load should exceed a current drain of 1A.
ADJUSTMENTS
To achieve optimum performance, the following adjustments are required:
Adjust
Power Supply
R17
R17
R50
R50
NOTE: For proper operation of the auctioneered outputs, PRDC1 and PRDC2 should
have identical values.
G-2
• +8.5 Vdc thru full wave bridge rectifier D10, D11, D12, D13 and auctioneering diode
D9 (to terminal J2/20A, 20C, 22A and 22C) (also to terminal J7/10A, 10C)
• 6.5 Vac for the electroluminescent display (to terminals J2/4A, 4C and 6A, 6C)
To Achieve
1
26.00Vdc
1
70.00Vdc
2
26.00Vdc
2
70.00Vdc
Power Automation and Protection Division
On
PRDC1 (Term. J7/16AC)
PRDC1 (Term. J7/16AC)
PRDC2 (Term. J7/18AC)
PRDC2 (Term. J7/18AC)
Comments
G01
G02 and G03
G01
G02 and G03
REL 352 Version 1.00
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