OPERATION SUMMARY - Section 3
3-12 MTS-3000 SERIES OPERATION AND REFERENCE MANUAL
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CU M004 01A
3.3.2 Basic AC Voltage, Current and Phase Angle Output
1.
Ensure the system outputs are disabled. Press
ENABLE, if necessary, to extinguish its LED. Select
FAULT mode by pressing FAULT. The FAULT LED
lights to confirm the selection.
2. Press F1 of the voltage module. Its LED lights to
indicate selection of channel VA, and a flashing cursor
appears beneath the V on the first line of the adjacent
display.
3.
Press 5, 0,., 0, and ENTER on the MODIFY keypad.
Channel VA amplitude reading follows the typed input
and changes to 50.00 V.
4.
Press F1 on the current module. Its LED lights to
indicate selection of channel IA, and a flashing cursor
appears beneath the A on the first line of the adjacent
display. The LED on channel VA goes out.
5.
Press 7,
.
, 0, 0, and ENTER on the MODIFY keypad.
Channel IA amplitude reading follows the typed input
and changes to 7.00A.
6.
Press F1 again on the current module. Its LED remains
lit, and a flashing cursor appears beneath the degree
symbol (
°
) on the ‘IA’ line of the display.
7.
Press 7, 5,
.
, 0, and ENTER on the MODIFY keypad.
Channel IA phase angle reading follows the typed
input and changes to 75.0
°
. The voltage-to-current
FIGURE 3.9 BASIC AC ADJUSTMENTS phase angle reading on the CM display also changes to
75.0
°.
8.
Press ENABLE. The ENABLE LED lights.
9.
Press and hold FAULT. The FAULT LED flashes to indicate fault state is active. The output warning
LEDS next to the output terminals of the current and voltage modules are also lit, indicating that the
outputs are enabled. The programmed (and other default) AC voltage and current values appear at the
outputs until the FAULT button is released.
If the programmed values in the example above were sufficient to operate the relay connected to the
outputs of the MTS system, then, upon operation of the relay the LED indicator associated with INPUT 1
will light, and the audible tone will sound. Once the FAULT button is released, the AC outputs return to
zero, the relay being tested drops out, and the indicator LED and tone turn off.