Remote control of output voltage, Internal data logging – Rockwell Automation 1606-XLS960F-3 Power Supply Reference Manual User Manual

Page 10

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All parameters are specified at 24V, 2.5A, 230Vac input, 25ªC ambient and after a 5 minutes run-in time unless noted otherwise.

10

Rockwell Automation Publication 1606-RM032A-EN-P — April 2014

Bulletin 1606 Switched Mode Power Supplies

10. Remote Control of Output Voltage

The shut-down input can also be used to remotely adjust the output voltage between typically 28Vdc and 54Vdc. All
other functions of shut-down input remain the same.
The control voltage is referenced to the main ground (negative output voltage).

Fig. 10-1 Remote control of the output voltage

Fig. 10-2 Applying the control voltage

Output Voltage

24V

0V

5V

15V

28V

32V

36V

56V

40V

44V

52V

Control Voltage

48V

10V

20V

Potentiometer:

set to 54V

set to 48V

15

16

Control
Voltage

Shut-

down

Input

-

+

n.c.

Instructions:

1. Set the unit into “Single Use” mode.
2. Set the output voltage adjustment (48-54V) to the maximum desired voltage.
3. Apply a control voltage to reduce the output voltage.

11. Internal Data Logging

A protected microcontroller inside the power supply acquires and stores operating data during the life of the unit. The
data can be downloaded with a small tool and a special software by Rockwell Automation service and repair personnel,
even when the unit is failing. The data allows for better troubleshooting. Events occuring just before a failure can be
analyzed much more accurately.
The data will be acquired with a fixed sampling rate unless the peak detectors trigger due to an abnormal
condition. In such cases, the abnormal condition will be captured.

Acquired data:

- Family name of unit (1606-XLS), revision of firmware
- Operational hours and expired portion of lifetime
- Operational data; latest 60 values with timestamps of the last 158 minutes of:
Number

of

over-voltage

transients,

Average

input

voltage,

Peak

input

voltage,

Inside

temperature,

Overloads

>

2s,

Missing of one input phase (minimum output load required)

- Failure data; various errors such as:

Internal errors,
Over-temperature shut-down,
OVP,
Long-term overloads,
Remarkable temperatures inside the unit,
….

- Number of turn-on sequences and overvoltage transients

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