OPERATION SUMMARY - Section 3
MTS-1700 SERIES OPERATION AND REFERENCE MANUAL 3-13
CU A002 15A
MANTA TEST SYSTEMS
4. Press and hold [FAULT] and turn the [MODIFY] knob to change the current. When the relay contacts
close, the [TONE] button will light. If the audible stop trigger tone has been enabled (by pressing the
[TONE] button), the tone also will sound. Releasing the [FAULT] button at any time will turn off the
current. This allows you to make several passes at adjusting the current without overheating the relay.
You can also set the fault current without applying current to the relay using the fault current preset
feature (see Section 4.6.9).
Note: If an “OVERLOAD I1” warning appears, the relay burden may be too high. If possible, apply
current to the instantaneous element only, and bypass the timed element.
5. To time the operation of the instantaneous element, press [STATIC/DYNAMIC] to select DYNAMIC
operation mode.
6. Press [FAULT] to initiate timing check.
7. When the relay operates, the [STOP/RESET] button will illuminate. The operate time can be viewed by
pressing [TIME]. Press [STOP/RESET] to return to the prefault state and prepare for the next test.
FIGURE 3.5 OVERCURRENT RELAY TARGET/SEAL-IN TEST SETUP
Select I4 current mode.
Manually rotate disk and hold main contacts closed
TARGET
OP