Eaton SmartWire-DT SWD Series User Manual

5 Connection PKE-SWD for motor-protective circuit-breaker PKE12/32/65
5.10 Programming
SmartWire-DT module IP20 01/20 MN05006001Z-EN www.eaton.com 133
5.10.1.5 Differential trip indication (TRIPR)
In the event of a malfunction or interruption of the main circuits due to a fault
scenario, the trip reason of the interruption is indicated via the TRIPR bit field.
The following trip reasons are shown by the TRIPR bit array:
Table 19: Differential trip indication TRIPR
The transmitted trip reasons are reset when the main contacts of the PKE
are closed again and a power flow through the PKE trip block is detected.
The message 0x3 “phase failure/phase unbalance” is set if there is a phase
current difference of 50% between the highest phase current measured and
phase affected. This message is reset if the phase current difference is
below 25 %.
The “phase failure/phase unbalance” does not force the interruption of the
main circuits. To protect the connected motor in the event of phase loss/
phase unbalance, the tripping time in the event of an overcurrent is reduced
to 40 % compared to when the phase load is symmetrical.
The interruption of the main circuits is executed early if the thermal motor
image reaches 100 %.
5.10.1.6 Relative current value (I-REL)
The PKE-SWD indicates the actual motor current via the input byte 2. The
motor current is shown as a relative value in the ranges 0 % (0x00) to 255 %
(0xFF). The transferred relative value is calculated from the value of the high-
est phase current measured in relation to the set current value of the over-
load release. The accuracy of the relative current indication depends on the
Field Value Description Notes
TRIPR 0x0 Not defined –
0x1 Overload PKE has switched off
0x2 Short-circuit PKE has switched off
0x3 Phase failure/
Phase Imbalance
Disconnection at:
100 % of the thermal motor image (TH)
0x4 Test position on
PKE-XTU(W)A-…
PKE has switched off
0x5 Not defined –
0x6 Remote tripping through
output bit
PKE has switched off
0x7 Not defined –
￫
The Test position on the PLE trip block and remote tripping
through output bit R-TRIP cause a trip when a phase current of
at least 85 percent of the minimum mark of the variable over-
load release on the PKE trip block flows through all three main
circuits (for example PKE-XTUA-4
￫ I
min
= 0.85 × 1 A = 0.85
A).

Eaton SmartWire-DT SWD Series Specifications

General

Brand	Eaton
Model	SmartWire-DT SWD Series
Category	Control Unit
Language	English