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2 INSTALLATION
EXTERNAL RESET TERMINALS
2.13 EXTERNAL RESET TERMINALS
An external reset switch, which operates similarly to the keypad RESET key (see Section 3.1: FRONT
PANEL), can be connected to terminals 56 and 57 for remote reset operation. The switch should have normally
open contacts. Upon closure of these contacts the relay will be reset. This external reset is equivalent to press-
ing the keypad RESET key. Keeping the External Reset terminals shorted together will cause the 269Plus to
be reset automatically whenever motor conditions allow.
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A twisted pair of wires should be used. Connection to the 269Plus is made via a terminal block which can
accommodate up to #16 AWG multi-strand wire.
2.14 ANALOG OUTPUT TERMINALS (NON-ISOLATED)
Terminals 58 and 59 of the 269Plus are available for an analog current output representing one of: percentage
of motor thermal capacity used; motor current as a percentage of full load (i.e. 0.25 to 2.5 × FLC); hottest stator
RTD temperature as a percentage of 200°C; RTD #7 (bearing) temperature as a percentage of 200°C; or CT
secondary current as a percentage of CT secondary amps rating. The choice of output is selected in Setpoints
page 5. This selection can be made or changed at any time without affecting the protective features of the
relay.
The output current range is factory default at 4 to 20 mA. However, this range may be changed in Setpoints
page 5. The 4 mA output corresponds to a low scale reading (i.e. 0% thermal capacity used, 0.25 × FLC, 0°C
hottest stator RTD temperature, RTD #7 temperature, or 0 A phase CT secondary current). The 20 mA output
current corresponds to a high scale reading (i.e. 100% thermal capacity used, 2.5 × FLC or lower phase cur-
rent, 200°C for hottest stator RTD and RTD #7 temperature, or either 1 A or 5 A phase CT secondary depend-
ing on the CT used).
This output is an active, non-isolated current source suitable for connection to a remote meter, chart recorder,
programmable controller, or computer load. Current levels are not affected by the total lead and load resistance
as long as it does not exceed 300 Ω for the 4 to 20 mA or the 0 to 20 mA range (2000 Ω for 0 to 1 mA range).
The output will saturate at 20.2 mA for readings greater than 100% of full scale.
This analog output is not isolated. Terminal 58 is internally connected to system ground. Consequently the
negative terminal of the connected load device must be at ground potential. When isolation is necessary, an
external two-wire isolated transmitter should be used between the 269Plus and the load (e.g. PLC).
A twisted pair of wires should be used. Connection to the 269Plus is made via a terminal block which can
accommodate up to #16 AWG multi-strand wire.
2.15 DIFFERENTIAL RELAY TERMINALS
Terminals 48 and 49 are provided for connection to a differential relay. This allows an external differential relay
to be connected to the 269Plus. When the differential trip function is enabled on Setpoints page 5, a contact
closure between Terminals 48 and 49 will cause an immediate activation of the output relay assigned to the dif-
ferential relay input function. After a DIFFERENTIAL INPUT TRIP, Terminals 48 and 49 must be open circuited,
or the function disabled in order to reset the relay.
If no differential relay is to be used, Terminals 48 and 49 should be left open and the function disabled.
A twisted pair of wires should be used. Connection to the 269Plus is made via a terminal block which can
accommodate up to #16 AWG multi-strand wire.
GE Power Management
269Plus Motor Management Relay
2-
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Courtesy of NationalSwitchgear.com
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