Mci Board Extension - Siemens SINUMERIK 840Di Manual

2 Hardware Descriptions

2.3 MCI board extension

2.3 MCI board extension
2.3.1 Module
Order number:
2-56
The MCI board extension provides the following functions as an optional
expansion board of the MCI board:
– Four binary inputs (isolated)
– Four binary outputs (isolated)
– Two measuring inputs (isolated)
– Two handwheels (non-isolated).
*)
X121: Cable distributor
*)
*) locking screws
Internal thread: UNC 4-40
Fig. 2-6 MCI board extension
Designation
MCI board extension (option)
Caution
Never plug or remove the cable distributor at the X121 interface of the mod-
ule under voltage.
Before you plug or remove the cable connector, switch off the PCU (shut down
Windows NT correctly!). Otherwise, short circuits might occur on the module, as
a result of which the module could be destroyed.
X4: MCI board extension
PCI bus (mechanical)
Order No. (MLFB)
6FC5 222-0AA00-0AA0
 Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
06.03