Battery power supply, Control and backup supply – ElmoMC Gold Line Digital Servo Drives-Gold Solo Trombone User Manual
Page 51
Gold Solo Trombone Installation Guide
Installation
MAN-G-SOLTROIG (Ver. 1.3)
51
4.7.2.2.
Battery Power Supply
Figure 13: 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.
4.7.3. Control and Backup Supply
In drives that have 0 or 1 suffix in the catalog number, a smart control-supply algorithm enables
the Gold Solo 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 that in such model there is no backup ability at all.
If backup functionality is required to store control parameters in the event of a mains power
outage, then an S, T, or AP model Gold Solo Trombone should be used, with an external 24 VDC
isolated supply connected to it.
Note that the S, T, or AP model Gold Solo 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.
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.