ABB SACE Emax Series, Installation, Service And Maintenance Instructions

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L2234
Emax
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Model Scale
Page No.
Doc. No.
Apparatus
1SDH000460R0002
L2778
15.3.7 PR120/K module menu
The PR120/K is fitted with four relays having contacts named K51/p1, K51/p2, K51/p3 and K51/p4 which can signal different situations selectable
by the user from among those given in the standard list, whereas customizations can be programmed by selecting "custom" on the menu and
setting the signal required with a PDA, SD-Testbus or PR010/T.
See Appendix 16.5.
Parameter / Function Values Notes
Relay no. 1...4
(K51/p1...p4) Signal source Standard or custom - see par. 15.5
Delay 0...100s step 0.01s - Deliberate delay before activating the contact
NO/NC NO/NC - Contact normally-open (NO) or normally-closed
Latch ON/OFF - With the contact "ON", once it has been activated it
stays switched. A specific reset action is needed to
reset it
Input
Polarity Active low
Active high
Function Generic - no associated action
Outside trip - releases the circuit-breaker
Reset trip - resets the data after a trip
Set B - switches from set A to set B (for PR123/P only)
Local - forces the local status of the protection (local/remote)
Signal reset - programmable contact reset
Energy reset - energy meter reset
Delay 0…100s step 0.01s - performs action after t is set
15.3.6 Power supply
The PR120/K signalling module is powered in auxiliary mode by the relay and/or by the PR120/V as specified in chapter 15.1.
15.3.8 Configurable input
There is an input with a configurable function in the Signalling module. The figure shows two cases, A and B, in which the input's status is active;
in case A the input does not stay valid beyond the enabling delay so the associated action does not take place, whereas in case B the action takes
place after the preset delay.
15.3.8.1 Input configuration settings
You can select the level at which to consider the input enabled:
1. low input enabling level
2. high input enabling level
15.3.8.2 Input function settings (ACTION)
You can select the action associated with the input, i.e. the action that takes place after the programmed delay, when the input is enabled (on
high or low level).
You can select one of the following actions:
1. Generic: no specific action is associated with the input. The status of the input is shown on the available display and remotely via the bus
2. Trip test: when the input is enabled for the specified delay, a trip test is performed
3. Trip reset: when the input is enabled for the specified delay a trip reset is performed
4. Set B: when the input is enabled for the specified delay, the Set B is enabled
5. Dial Local: when the input is enabled for the specified delay, there is a forcing of the dialogue local mode
6. Signalling module reset: when the input is enabled for the specified delay, the status of the relays in the PR120/K module is reset
7. Energy reset: when the input is active for the specified delay, the energy meters are reset.
15.3.8.3 Setting the input enabling delay
By means of the "Delay" parameter, you can specify the time elapsing before the input is enabled in the range 0.00 [s] to 100.00 [s] with 0.01[s]
steps.
Times shorter than the delay
Consequent action
Input status
Preset delay
Action