Features of the Shiva Amvaj Digital Load Controller (FN Series)

Current control based on the I2t curve
Current measurement without CT, with direct cable passage up to 25mm²
Display of current, set values and error messages
Protection against over-current, under-current and current asymmetry
Unlimited reset setting capability
Two operating modes, manual and automatic, for current control at initial start-up
8 indicators to signal
- OL: Over-current (1-100A) , (0.1-30A)
- UL: Under-current adjustable from zero to 1 unit below (OL)¹
- A%: Current asymmetry (7-100% )
- ON: Turn-on delay (0-240Sec)
- OFF: Trip delay for OL and A% errors (0-20Sec)
- (u)OFF: Trip delay for UL error ( 5-10Sec)
- Normal: Relay status
- Delay Start: Initial start time
  - Manual mode (0-120Sec)
  - Automatic mode (5Sec)

(Indicators are steady in setting state and blink in error state)

1. If UL is set to zero, under-current protection is disabled.

Device operation

The FN series digital load controller has two operating modes, which are selected in the settings section:

1. Manual mode (Han): With this mode selected, over-current is not controlled during the initial start time, which can be between ( 0-120Sec).

2. Automatic mode (Aut): In this mode, to prevent motor jamming, over-current is controlled during the initial start time, which is 5 seconds. If the current meets one of the 3 conditions below, the device detects the fault, the relay trips immediately, and the display shows the blinking text HHH:

The passing current is more than twice the device CT value: 60A model:DLFN-30A and 200A model:DLFN-100A

The current is more than 3 times the set maximum current (OL).

The current is above the set maximum current (OL) and continues for 5 seconds, even if it is decreasing, i.e. still above the set maximum current after 5 seconds.

Note: In both operating modes, during the initial start time the display shows the passing current for 2 seconds and the Delay Start countdown for 2 seconds.

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Load Controller

Digital Load Controller (FN Series)

Digital Load Controller