Eaton SmartWire-DT SWD Series User Manual

4 PKE-SWD-32, interface for motor-starter combination with PKE PKE12/32
4.9 Programming
SmartWire-DT module IP20 01/20 MN05006001Z-EN www.eaton.com 115
4.9.2 Overload relay function (ZMR)
The ZMR function enables the motor to be switched off by the connected
contactor in the event of an overload. To do this the PKE sends the switch off
command for the contactor to the PKE-SWD-32 via the data cable of the
PKE32-COM.
The ZMR function is activated using the output data of the PKE-SWD-32 (out-
put byte 0 Bit 2).
If the ZMR function is deactivated, the connected motor is switched off in
the event of an overload by the electronic PKE motor protective circuit
breaker. The ZMR function cannot be deactivated in the event of an overload
until the thermal motor image falls below 100 %.
The trip in response to a motor overload occurs if the thermal motor image of
the PKE reaches 110 %. In this case, the PKE-SWD-32 sends the bit value
0x5 via the TRIPR data field (input byte 1, bits 4 - 6). This value stays set until
the thermal motor image goes below the 100% mark and the contactor is
once more operational.
The reclosing readiness of the contactor can be selected by the two manual
and automatic operating modes of the ZMR function.
Field Value Set time lag
CLASS 0x0 Class 5
0x1 Class 10
0x2 Class 15
0x3 Class 20
0x4 Test position
0x5 Not defined
0x6 Not defined
0x7 Not defined

DANGER
The ZMR function must not be activated with reversing starters
since this operation does not ensure the disconnection of the
second contactor in the event of an overload.

DANGER
Never disconnect the communication link between the PKE-
SWD-32 and the PKE trip block after an overload with the ZMR
function activated, as this can cause the contactor to switch on
if a switch command is present.
￫
The ZMR function can only be used in position A of the 1-0-A
switch.

Eaton SmartWire-DT SWD Series Specifications

General

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