Festo Кабели и принадлежности - Manual (Page 131)

3. Installation
3−53
Festo P.BE−SPC200−EN en 0901d
Basic rules When the modules are installed on the axis interface string
the following basic rules must also be observed.
1. Maximum string length per string
ć The string length is the sum of all cable sections
between the SPC200 and all direct string devices,
seeĂsection 1.3.
ć The maximum permitted string length is 30 m.
2. External load voltage supply
ć If the following modules are used, the external load
voltage supply type SPC−AIF−SUP−24V must be inĆ
stalled directly in front of the relevant module:
ć I/O function module (type SPC−FIO−2E/2A)
ć with two−axis systems: CP valve terminal
(type CPV...)
ć A load−dependent drop in voltage occurs on the axis
interface string. If the installation is faulty, this can
cause the load voltage to drop below the permitted
tolerance.
3. Configuration on the axis interface string
ć At first maximum two axis interfaces are connected to
the SPC200. If required, the I/O function module or at
first a CP module with outputs, and then a CP module
with inputs, is connected to the last axis interface.
4. Terminating resistor
ć If there is a CP I/O module, a CP valve terminal or an
axis interface at the end of the axis interface string,
the plug with integrated terminating resistor type
KABS−M9−R100 must be installed in the outgoing CP
cable of this module (e.g. connection OUT).