Emco EE301-T, Руководство пользователя

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V. OPERATING INSTRUCTION :
1. Check the PT & Auxiliary fuses.
2. Connect 110V / 230V A.C. Aux. Supply to pins 1 & 2 of the Rear Panel Terminal
Block.
3. Connect PT Supply to pins 3 & 4 of the Rear Panel Terminal Block.
4. Turn on the instrument by putting Power Switch to 'ON' position.
5. Leave the unit on for 15 minutes before making any settings.
6. Check the Test / Normal Switch is in the Normal mode.
7. Make the following settings by changing selector switch.
NOMINAL VALUE 110V
LOWER VOLTS Setting 112V
RAISE VOLTS Setting 108V
TIME-DELAY Setting 30 Sec.
%R & %X Setting ‘0’ %
(in case of relay with LDC)
8. Keep the selector switch to PT I/P position.
9. Increase the PT voltage to read PT = 110V
10. Note that under this condition all the lamps viz. L, R, LR, RR & UV/OV are off.
11. LOWER VOLTS OPERATION CHECK :
Increase the PT Supply above 112V (atleast 112.5V), but ensure that it is below
OV limit (132V). 'L' lamp should immediately turn on.
The 'LR' control pulse will come only after 30 secs. from the instant of turning on
of 'L' lamp. The control pulse will remain 'ON' for 2 secs, after which the Time
Delay of 30 secs. will restart & the control pulse will come again for 2 secs. & the
cycle is repeated. Check the LR contacts on pins 9-10 of the Rear Panel
Terminal Block.
12. RAISE VOLTS OPERATION CHECK :
Decrease the PT Supply below 108V (atleast 107.5V), but ensure that it is above
UV limit (88V). 'R' lamp should immediately turn on.
The 'RR' control pulse will come only after 30 secs. from the instant of turning on
of 'R' lamp. The control pulse will remain 'ON' for 2 secs, after which the Time
Delay of 30 secs. will restart & the control pulse will come again for 2 secs. & the
cycle is repeated. Check the RR contacts on pins 11-12 of the Rear Panel
Terminal Block.
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