ElmoMC Gold Line Digital Servo Drives-Gold DC Bell - Manual (Page 26)

Gold DC Bell Installation Guide
MAN-G-DCBELIG-EC (Ver. 1.200)
||Main and Auxiliary Power| www.elmomc.com
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Table of Contents
6.3. Main and Auxiliary Power
The Gold DC Bell receives power from main and auxiliary supplies and delivers power to the motor.
6.3.1. Description
This section describes the Main and Auxiliary Power for power ratings 200V and 100V, and provides
details for the optional Backup (Auxiliary) Supply.
• The Gold DC Bell Power rating is 12 to 195 VDC
• There are Two power ratings for Gold DC Bell; 100V and 200V:
 For power rating 200V
Two power isolated DC power sources are required, main power 12 - 195V and Auxiliary
Power 12-95V for the logic.
 For power rating of 100V
Single DC Power Supply - Power to the Gold DC Bell is provided by a 12–95 VDC single
isolated DC power source (not included with the Gold DC Bell). A “smart” control-supply
algorithm enables the Gold DC Bell to operate with only one power supply with no need for
an auxiliary power supply for the logic.
 Optional Backup (Auxiliary) Supply
If backup functionality is required in case of power loss, e.g., to keep the original position, a
12–95 VDC external isolated supply should be connected (via the Gold DC Bell’s VL+
terminal). This is more flexible than the requirement for 24 VDC supply.
If backup is not needed, a single power supply is used for both the power and logic circuits.
There are two voltage ratings of the Gold DC Bell, therefore the correct power supply must
be used, according to the maximum operating voltage of the Gold DC Bell. Refer to section
4.2 Technical Data.