User Manual 57
User Manual 56
Appearance
Appearance
Description of Rating plug
The Rating plug module is used to indicate the rated current of the circuit breaker in operation.
If the rating plug module needs to be replaced, first power off the controller, then take out the original rating plug module
by a flat-blade screwdriver and install the required rating plug module.
Note: The rating of replaced plug-in module should not exceed the specified frame size rating in factory and not less than
the required minimum value of frame size rating.
USB port
In case of no power supply, the controller can be powered on through the 5V USB port, to view its internal information and
test its tripping function.
Battery features
1. In case of no power supply, you can view the internal information of the controller by installing batteries.
2. When batteries have been installed but there is no auxiliary power supply or rapid-saturable power supply, the main chip
of the controller will be in the sleep state. Press “ESC” to activate the main chip, and view the internal records and parameters
of the controller.
3. In the absence of the auxiliary power supply, the fault indicator will be normally ON after the circuit breaker trips due to
any fault, to facilitate troubleshooting by maintenance personnel.
Note: Battery model: ER14250; battery voltage: 3.6V, non-rechargeable. The normal operation of the controller is not affected
by the use of batteries.
Fault indicator
Reset after trip
When the circuit breaker trips due to any fault, the correspond-
ing indicator will be ON, the LCD will turn red, and the trip inter-
face will be shown on the LED display. First press the “Reset”
button (see the left figure) and then “ESC” to reset the control-
ler. The default interface of the controller will appear.
Reset after alarm
When the circuit breaker sends an alarm, the LCD will turn
yellow, and the LED ALM indicator will be ON. In this case, alarm
record need to be check. After the alarm is cleared, the control-
ler can return to the normal state.
Appearance Indicators
Indicatiors
1 Ig indicator: It is ON in case of tripping due to ground-fault.
2 Ir indicator: It is flashing in case of long time overload protec-
tion and normally ON after Long time delay tripping. It will return
to the normal state after receiving the reset command.
3 Isd indicator: It is ON in case of Short time delay trip.
4 Ii indicator: It is ON in case of instantaneous tripping of the
short circuit.
5 Running indicator: It is flashing during normal running.
6 A and H model: LCD, three-color backlight, green in normal run-
ning, yellow in alarm and red in case of tripping due to fault cur-
rent.
M model: LED digital tube display.
Buttons
7 ESC: Exit the current menu and enter the previous menu, or
cancel the current parameter settings.
8 Down: move down or decrease the setting value (“-”);
9 Up: move up or increase the setting value (“+”).
10 OK: Enter the sub-menu of the selected box or enable one box
to change the values.
Adjustment Interface
11 Long time delay current setting Ir
12 Long time delay trip time tr
13 Short time delay current Isd
14 Short time delay trip time setting tsd
15 Instantaneous current setting Ii
16 Ground fault current setting Ig
17 Ground fault tripping time setting Tg
18 Testing button: Tripping testing button
19 USB port
20 Rating plug
21 Transparent cover lock hook
22 Battery location
Tsd
Tg
3.0
4.0
1600
Tsd
Reset button
Profile of SU
Profile of SU
1600
1600
C
M
Y
CM
MY
CY
CMY
K