2 control and backup supply, Control and backup supply – ElmoMC ExtrIQ Gold Line Servo Drives-Gold Tiger User Manual
Page 35
Gold Tiger Installation Guide
MAN-G-TIGIG (Ver. 1.000)
||Main Power, Auxiliary Power
35
6.3.2
Control and Backup Supply
In drives that have a 0 or 1 Option (only for 400 V model) in the catalog number, a smart control-
supply algorithm enables the Gold Tiger 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 a 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 A, H, S, or T options Gold Tiger should be used, with an external 24 VDC isolated
supply connected to it.
Note that the A, H, S, or T options Gold Tiger 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.
To connect the 24 VDC backup supply:
1.
Use a 24 AWG twisted pair shielded cable. The shield should have copper braid.
2.
The source of the 24VDC backup supply must be isolated with an isolation transformer.
3.
For safety and EMI reasons, connect the return of the 24 VDC backup supply to the closest
ground (PE).
4.
Connect the cable shield to the closest ground (PE) near the power source.
5.
Before applying power, first verify that the polarity of the connection is correct.
Figure 18: Auxiliary 24 VDC Backup Supply Connection Diagram