Battery power supply, Connecting the control and backup supply, Figure 9) – ElmoMC SimplIQ Digital Servo Drives-Trombone Installation Guide User Manual
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Trombone Installation Guide
Installation
MAN-TROIG (Ver. 1.403)
32
3.7.2.2.
Battery Power Supply
Figure 9: Battery Connection Topology
Caution:
When using batteries, it is recommended to connect the negative pole to the
PE.
When doing so, the charger of the battery must be isolated from the mains by
an isolation transformer.
3.8. Connecting the Control and Backup Supply
In Trombone models without the S suffix in the catalog number, a smart control-supply
algorithm enables the Trombone to operate with the main power supply only, with no need for
an auxiliary supply voltage to supply the drive’s logic section.
Note:
In Trombone models without the S suffix, there is no backup ability at all.
If a backup functionality is required to store control parameters in the event of a mains power
outages, then an S-model Trombone should be used, with an external 24 VDC isolated power
supply connected to it.
Note that S-model Trombone always requires an external 24 VDC power supply, regardless of
whether or not backup functionality is required.
Connect the auxiliary 24 VDC power supply as described below (Figure 10).
Notes for 24 VDC backup supply connections:
•
Use a 24 AWG twisted pair shielded cable. The shield should have copper braid.
•
The source of the 24 VDC backup supply must be isolated with an isolation transformer.
•
For safety and EMI reasons, connect the return of the 24 VDC backup supply to the closest
ground (PE).
Connect the cable shield to the closest ground (PE) near the power source.
Before applying power, first verify that the polarity of the connection is correct.