KEYENCE IB Series User Manual
Page 21
2-1 Mounting and Wiring the Sensor Amplifier Unit
2-5
IB-E
2
Inst
all
at
ion and
Connec
tion
Panel mount type, expansion unit (IB-1550)
Several expansion units can be used in connection with the main unit. Up to 3 expansion
units can be connected to one main unit.
1
Make the appropriate number of holes in the panel according to the
number of amplifiers required (expansion units).
For the panel cutting measurement, refer to “Panel mount type, main unit”.
2
Install the amplifiers (expansion units) on the panel.
For the amplifier mounting method, refer to “Panel mount type, main unit”.
3
Connect the amplifiers (main and expansion units) using the expansion
cable (50 mm) supplied with the expansion unit.
The expansion unit installed next to the main unit is referred to as expansion unit 1.
Subsequent expansion units are referred to as expansion unit 2, expansion unit 3,
and so on.
CAUTION
• When connecting the expansion cable, make sure to turn off the
power beforehand. Inserting or removing the cable with the power
turned on may cause damage to the units.
• Push the expansion cable connector securely all the way. If it is
connected at an angle or not inserted securely, the units could get
damaged.
Point
• When connecting the expansion units, make sure to initialize the
connected expansion units and set the output polarity.
(1) When turning on the amplifier for the first time after connecting
the sensor head
"3-1 Operation when the Power is Turned On for the First Time" (page 3-2)
(2) When initializing the unit
"3-5 Initial Reset (Initialize)" (page 3-12)
• Expansion units with different settings for output polarity (such as
an NPN output expansion unit to a PNP output main unit) cannot
be connected together.
• Expansion units using panel mount cannot be connected to a DIN
rail mounted main unit.
Reference
When arranging the amplifiers side by side, the 300 mm expansion cable
(OP-35361) is required.
Expansion cable
Main unit
Expansion unit