IAI Rec, Instruction Manual

Page: 84 / 158

Chapter 4 Unit connection / In
stallation and Wiring
4.2 Unit connection / Installation
4-3
ME0394-1A
4.2 Unit connection / Installation
4.2.1 Unit connection restrictions
The REC system has the following restrictions.
Check the following descriptions and then make a selection for each unit.
(1) Unit arrangement
The REC system has a unit-connecting configuration. Each of the units has the same
connector and the same locking configuration, which allows the units to be connected in any
order. However, the arrangement of the following units is restricted.
EC Gateway unit: Placed on the far left of the REC system.
Terminal unit: Placed on the far right of the REC system.
(2) Number of Connectable Units of EC Connection Unit
Up to 16 axes can be controlled with each EC gateway unit.
Even though the EC connection units have a structure capable to be connected with no upper
limit, have them connected up to four units (16 axes) at the maximum. (EC connection unit
occupies the domains and axis numbers for four axes per unit regardless of ELECYLINDER
connected to the unit or not.)
When it is required to have 17 axes or more of actuators controlled, have 2 or more units of
the EC gateway unit to establish the construction.
EC Connection Unit
(between EC Gateway Unit and Terminal Unit)
EC Gateway Unit
(Installed at left end)
Terminal unit
(placed on far right)