4.
Up & downloading of all settings once (Quick setup)
1) Press Up and Enter keys at the same time at the status of normal, MCC mode and motor stop,
then "UPLd" begins to flash on the screen which denotes the setting values of the device are being uploaded in the display unit
and "U.END" is displayed when completed. Press Enter key to return to the measurement screen.
2) After installing the uploaded display unit onto the device that is not set yet, press Down and
Enter keys at the same time at the status of normal, MCC mode and motor stop,
then "dnLd" begins to flash on the screen which denotes the setting values of the display unit
are being downloaded in the device and "d.END" is displayed when completed.
Press Enter key to return to the measurement screen.
Note) 1. Up & downloading is available between the same models. If the models are different each other an error occurs with "d.Err" message.
2. Up & downloading of date, running time and fault cause are not available.
5. Checking fault history
1) Press Esc and Enter keys at the same time in the measurement screen,
then the most recent fault cause in #7 menu of D-group is displayed.
Note) If there is no fault history "1.non" is displayed.
2) Use Up and Down keys to move to the desired one out of 5 fault events and select by pressing Enter key.
3) The fault current of phase R is displayed. Each time pressing the down key following informations are displayed in turn :
fault current of phase S / fault current of phase T / overload ratio / date
4) To enter the previous mode, press Esc key.
5) Press Esc and Enter keys at the same time to return to the measurement screen.
6. Forced reset of thermal memory
Press Esc and Stop keys at the same time to make the tripped motor become a cold state by force
when operating characteristic is set to inverse-time curve with thermal-memory (th).
If a motor is tripped due to overcurrent the immediate pressing of reset key at the hot state of the motor causes immediate tripping.
To avoid it reset via pressing Esc and Stop keys at the same time which makes the motor cold state.
Operation and Setting
88
Electronic Motor Protection Relays