Setup
Connections
maxon motor control
EPOS4 Positioning Controller
Document ID: rel6852
3-53
EPOS4 50/5 Hardware Reference
Edition: May 2017
© 2017 maxon motor. Subject to change without prior notice.
3.3.15
Extension Slots (EXT1 & EXT2)
The controller provides two extension slots (
Figure 3-43) located underneath the plastic lid at the con-
troller housing’s top face. They host optionally available extension cards (
Table 3-40) and thereby
expand the controller’s comprehensive motion control functionality even further.
•
EXT1
provides connectivity for a communication extension card, such as for EtherCAT.
With the optionally available «EPOS4 EtherCAT Card», the controller serves as slave in an
EtherCAT network, provides access for EtherCAT master control (such as Beckhoff TwinCAT),
and offers real-time operation in an Ethernet master/slave network. For further details
sepa-
rate document «EPOS4 Communication Guide».
•
EXT2
provides connectivity for advanced signal extension cards, such as for additional abso-
lute sensors or customized signal extensions.
Using the respective optionally available EPOS4 cards, additional functions can be directly
accessed via the connector
“Extension Signal (X16)” on page 3-52.
Figure 3-43
Extension slots
An inserted extension card mechanically interlocks in both horizontal and vertical direction. To insert or
remove an extension card, proceed as follows:
Hot plugging/hot swapping the extension slots may cause hardware damage
Switch off the controller’s power supply before removing or inserting an extension card.
I
NSERT
1)
Make sure to switch off the controller’s power supply.
2)
Make sure that the extension slots are clean and free of any foreign objects.
3)
Carefully insert the extension card in the respective extension slot (either EXT1 or EXT2), keep
right-angled, and press down firmly.
4)
Mount the plastic lid, press it down firmly, and let the two latches snap into place.
R
EMOVE
1)
Make sure to switch off the controller’s power supply.
2)
Unlock the latches and remove the plastic lid, turn it over, and look for the molded catch in one
of its corners.
3)
Engage the catch into the extension card’s bore.
4)
Pull both – the plastic lid together with the extension card – straight upward.
