Main Switch; Remote Control Of The Main Switch; Remote Plug; Poe - Power Over Ethercat - IMC CRONOSflex Getting Started

12 imc CRONOSflex

1.2.2 Main switch

The imc CRONOSflex Base Unit has a central main switch by which the complete block of directly clicked
(stacked) modules is activated/deactivated. Independently powered, spatially distributed modules and
subsystems (blocks)

1.2.2.1 Remote control of the main switch

As an alternative to the manual main switch on the device's front panel, a remote-controllable electric
contact can be used to switch the device on and off. The connector designated "REMOTE" provides this
contact: connecting the signals "SWITCH" and "ON" switches the device on, connecting "SWITCH" to
"OFF" switches the device off. Any switch or relay contact used for this purpose must be able to bear a
current of approx. 50 mA at 10
supply.
The signal "SWITCH1" serves to run the device with the switch permanently bridged: when "ON" and
"SWITCH1" are connected, the device starts as soon as an external supply voltage is provided.
If this supply is interrupted, an internal buffer keeps the base unit activated for the appropriate buffer
duration in order to close the measurement and files, and then the device deactivates itself. This type of
operation is specially designed for use in a vehicle, permanently couples to the ignition and not requiring
manual control.
LEMO.1B.306 plug
LEMO
1
2
3

1.2.2.2 REMOTE plug

Possible configurations:
Function
Switch on and off „normal"
Switch on when connected to main supply only

1.2.3 PoE - Power over EtherCAT

imc CRONOSflex Modules are compatible with "Power-over-EtherCAT" (PoE), meaning they can receive
power completely from the EtherCAT connection cable and consequently no longer need their own
power supply line. This is especially attractive for decentralized satellite modules positioned somewhere
remote and inaccessible, and having no other outside line than the CAT5 cable. Thus, centrally remote-
controlled activation/deactivation of these satellites is achievable by means of PoE.
The PoE specifications determine the maximum power deliverable by the network cable. It may be
sufficient for multiple modules, depending on their types. PoE is supported for single modules each
connected by patch cables, but not for substacks of modules.
are activated/deactivated directly via their power supply connections.
20
max. The reference voltage for these signals is the primary voltage
Signal
ON / OFF
SWITCH1
ON / OFF
imc CRONOSflex Getting Started Version 1.8 - 08.01.2014
LEMO
4
5
6
jumpered main switch
Signal
SWITCH
n.c.
n.c.
Jumper between
SWITCH and ON / OFF
SWITCH1 and ON / OFF