Toshiba 48-1250 A Benutzerhandbuch

The TX is available with an optional RTD card that
provides 12 programmable RTDs which are individually
programmable for type.  The available types are 100 ohm
platinum, 100 ohm nickel, 120 ohm nickel and 10 ohm
copper.  Each RTD can be identified with a description
name of up to 15 characters (including spacing).  Also,
each individual RTD has it own alarm and trip level.

Use NEMA Temp for RTD Value: When this
setpoint is enabled, the TX will use the NEMA
design insulation class to limit the maximum
allowed range of the alarm and trip level.  The
maximum allowed temperature range is 240° C or
(464°F).

# Of RTD’S Used for Stator: Up to six RTDs can
be assigned to monitor the stator of the motor.

RTD Voting:  When this is enabled, the TX will
not post a trip until 2 RTD’s have exceeded the
trip level. This prevents nuisance RTD tripping.

All 12 RTDs are configured in the following
manner.  The first column is the RTD type, the
second column is the RTD description, the third
column is the alarm level, and the fourth column
is the trip level.
The first six RTDs have been pre-programmed
with a description name for the STATOR, with two
RTDs per phase.  RTDs #1 & #2 have been
named STATOR PHASE A1 and A2 respectively.
RTDs #3&4 are named STATOR PHASE B1 and
B2, RTDs #5&6 are named STATOR PHASE C1
and C2.  If other description names are required,
press the right arrow button from the RTD Type
screen to go the RTD description screen.  If no
alarm or trip level is required these setpoints can
be turned off.