Manual WIP1 GB
Woodward
DOK-TD-WIP1 Rev.F
41
6.8 Signal inputs
6.8.1 Fast trip
By this operating input a fast trip can be initiated if a specific minimum current flows via the measuring C.T.s.
Adjustable are two kinds of fast tripping:
>>>FAST_TRIP<<<<
Immediately_____
Here a trip occurs when the C.T. current in at least one phase is sufficient to supply the relay.
>>>Fast_Trip<<<<
After_Pickup____
Here a trip occurs when the current flowing is higher than the set threshold.
6.8.2 Blocking the protection functions
The blocking function of the WIP1 can be set acc. to requirement. By applying the aux. voltage to terminals
14 and 17 the functions chosen by the user are blocked.
Block._Function_
I>_No___________
For the "Yes" or "No" entry, push buttons <+> or <-> are to be used. This applies for the overcurrent ele-
ment, short circuit element and if available earth fault overcurrent and high set element.
6.9 Reset
There are four possibilities for resetting the WIP1 as well as the relay 1/latched.
The parameter setting mode under menu item Tripping type/ Relay configuration offers the parameter Reset.
Here once can choose whether the LED and the bistable relay 1 can be reset automatically or manually.
Manual Reset
If the display is on by pressing the <SELECT/RESET> push button for some time (about 3 s). Reset are: the
display, LED and the bistable relay 1.
Note: The manual reset function could be bounded at - °C temperature in “battery mode”. To avoid this be-
havior please press the button “DISPLAY ON” at the same time
Automatic reset
In case of automatic resetting the bistable relay 1 and the LED are reset by applying the transducer current.
WIP1-1:
The LED extinguishes and the bistable relay 1 is reset if sufficient current is available to put the WIP1-1 into
function.
1 – phase from approx. 0.35A
2 – phase from approx. 0.22A
3 – phase from approx. 0.17A
