Festo Электромотор MTR-DCI - Manual (Page 58)

3. Installation
3-10
Festo P.BE-MTR-DCI-PB-EN en 1209a
3.3.3 Separate supply with load and logic voltage
With separate supply, the load voltage can be switched off
(e.g. in the case of EMERGENCY-STOP), with logic voltage
continuing to be applied and the controller remaining func-
tional, retaining its reference position.
Supply with load voltage is as above (see 3.3.2).
The logic voltage, however, is supplied via the fieldbus
adapter FBA-... (see Accessories chapter) :
1
Fieldbus
connection
2
Continuation of
the fieldbus or
terminating
resistor
3
Supply of
separate logic
voltage
1 2 3
For the pin allocation and connection specification, see the
installation manual of the fieldbus adapter.
If connection
3 is not used: apply a protective cap to main-
tain the IP protection class (see A.2).
Switch-on sequence Do not switch on the logic voltage after the load voltage,
since this may cause the MTR-DCI to switch off and back on
again (= reset).
Logic voltage failure If the logic voltage fails, the controller will switch off.
For MTR-DCI-42/52/62: if the load voltage is still active,
it will switch back on but will lose its reference position
(= reset).