KEYENCE IL Series - Manual (Page 25)

2-1 Mounting and Wiring the Sensor Amplifier
2-5 IL-E
2
Installation and C
onnection
Panel mount type, expansion unit (IL-1550)
Up to 7 expansion units can be connected to one main unit.
1
Make holes on the panel to attach according to the number of amplifiers
(connected expansion units).
For the panel cutout dimensions, refer to the "Panel mount type, main unit (IL-1500)" (page 2-4).
2
Install the amplifiers (expansion units) on the panel.
For the amplifier mounting method, refer to the "Panel mount type, main unit
(IL-1500)" (page 2-4).
3
Connect the amplifier (main unit) and amplifier (expansion unit) 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, etc.
CAU CAUTION
• Turn OFF the power before connecting the expansion cable.
Inserting or removing the cable with the power turned on may
cause damage to the units.
• Be sure to completely connect the expansion cable. Improper
connections may damage the equipment.
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 performing the initial reset
"3-3 Initial Reset (Initialize)" (page 3-8)
• Expansion units with different setting of output polarity (such as an NPN output
expansion unit to a PNP output main unit) cannot be connected together.
• Expansion units of panel mount type cannot be connected to the
main unit of DIN rail mount type.
Reference
When arranging the amplifiers side by side, the expansion cable of 300 mm
(OP-35361) is necessary.
Expansion cable