Connecting the optional backup supply cable – ElmoMC ExtrIQ Digital Servo Drives-Eagle User Manual
Page 31
Eagle Installation Guide
Installation
MAN-EAGIG (Ver. 1.902)
31
3.4.2.3.
Connecting the Optional Backup Supply Cable
Power to the Eagle is provided by a 12 to 195 VDC source (depending on the model type).
With the exception of the Eagle XX/400 model, a “smart” control-supply algorithm enables the
Eagle to operate with only one power supply with no need for an auxiliary supply voltage.
Note:
In the 400 V product line (EAG XX/400), there is no internal connection to enable the main
input to power the internal SMPS for low logic voltages. Therefore, a 24 VDC auxiliary power
supply must be connected in order to activate the 400 V drive’s internal SMPS.
If backup functionality is required for storing control parameters in case of power-outs, an external
12 to 195 VDC power supply can be connected, providing maximum flexibility and optional backup
functionality when needed. For the XX/400 model, the 24 VDC auxiliary power supply (see the note
above) can carry out this function.
To connect the backup supply to the Auxiliary port, use the Eagle's J1 connector (CAN
communication connector). Remember, you are working with DC power so be sure to exercise
caution.
Notes for backup supply connections:
•
Use a 24 AWG twisted pair shielded cable. The shield should have copper braid.
•
The source of the backup supply must be isolated.
•
For safety reasons, connect the return of the backup supply source to the closest ground.
•
Connect the cable shield to the closest ground near the power source.
•
Before applying power, first verify the polarity of the connection.
Pin
Signal
Function
Pin Position
J1-9
+VDC Backup
Supply
+VDC backup supply
J1-8
RET Backup
Supply
Return (common) of the
backup supply
Table 6: Backup Cable Plug
J1
Male