1-4
IM WT18O1E-02EN
1.3 Setting the External Current Sensor Range
(Option)
This section explains the following settings for external current sensor ranges (current ranges that are
used when external current sensors are being used). This feature is available on models with the /EX1
to /EX6 option.
• Input element
• External current sensor
• Auto range
• Fixed range
►
“External Current Sensor Range (EXT SENSOR; option)” in the features guide
1.
Press the
ELEMENT
key for setting ranges to select the input element or wiring unit that you
want to set the external current sensor range of.
• While the setup menu is displayed, press
ESC
. Information corresponding to the input elements or
wiring units will be displayed highlighted on the menu. You can also use the soft keys corresponding to
the highlighting to select the input element or wiring unit.
• Press
SHIFT+
the
ELEMENT
(ALL) key for setting ranges to collectively configure all the input elements
for which the following conditions are met.
The input element type (for 5 A or for 50 A) is the same.
The valid measurement range setting (see section 1.7) is the same.
2.
Press
EXT SENSOR
to illuminate the EXT SENSOR key.
Press
EXT SENSOR
again to turn the EXT SENSOR key off. In this state, you can set the current range
that is used when current is applied directly to this instrument (see section 1.2).
3.
Follow the instructions below to set the external current sensor range.
Auto Range Setting
Press the current range’s
AUTO
key.
Setting the Fixed Range
Press the current range’s
fixed range
keys (▲ and ▼) to set the external current sensor range.
Available External Current Sensor Range Options
When the display format of the external current sensor range is set to DIRECT, you can select
the range from the available options shown in the following table (the unit is mV or V). When the
display format is set to MEAS, the setup range is set to the value from the following table divided
by the external current sensor conversion ratio (the unit is A). For instructions on how to set the
display format of the external current sensor range, see section 1.5.
When the crest factor is set to 3
When the crest factor is set to 6 or 6A
50 mV, 100 mV, 200 mV, 500 mV, 1 V, 2 V, 5 V, 10 V 25 mV, 50 mV, 100 mV, 250 mV, 500 mV, 1 V, 2.5 V,
5 V
External current sensor range display
ELEMENT key for
setting ranges
Note
When Element Independent (see section 1.9) is set to OFF, the external current sensor ranges of input
elements that are assigned to the same wiring unit are set to the same range. When Element Independent
is set to ON, you can set the external current sensor range of input elements that are assigned to the same
wiring unit separately.