XP Power Non Isolated Analog Programming / Interface Owner’s Manual

XP Power Non Isolated Analog Programming / Interface Owner’s Manual

Non-isolated

Analog Programming / Interface
Interface to the operating instructions
(Translated from German) Version: 9.7

Analog Programming option / interface

General

The analog interface (15-pole Sub-D socket on the rear panel) is used to control the functions voltage setting, current setting as well as OUTPUT ON/OFF and special functions, depending on the unit type. The current actual values are provided as analog voltages and the latest control modes as digital signals.
The assignment of some pins diWers depending on the device series. Please refer to the overview for analog programming under 1.3

The interface is located on the rear panel of the DC power supply.

Function

Voltage and current values can be set with normalized analog signals (external reference). The internal reference voltage +10 V can be tapped at pin 10 and used to generate these setpoint signals (e.g. with 10 KΩ potentiometers), see wiring options under 1.4

Signal and control cable

The analog interface is implemented via a shielded Sub-D socket. The shield is connected to the housing potential (PE). The mating connector, as well as the data link, must be shielded and the shields must be connected to each other. The maximum permissible length of the shielded cable is 3m.
These are requirements for compliance with electromagnetic compatibility (EMC), see also the Declaration of Conformity in the appendix.

Voltage limitation

The voltage limitation, if present adjustable by the potentiometer VLIMIT on the front panel of the DC power supply, is still active.
Due to the direct coupling of the analog signals, the device characteristics like accuracy, linearity, stability and temperature coeWicient remain unchanged.

Please note that the power supply units which are equipped with the non- isolated analog programming option CANNOT be operated potential-free!

This potential connection protects against personal injury and property damage.
For safety reasons one output pole depending on the device type is delivered earthed.

Types of devices

HCB| HCK| HCP| MCA| MCP| NLB| NLN| NTN
„0V“ earthed| „-“ or „A-“ earthed| „A0“

earthed

| „+“

earthed

| „A+“

earthed

Foreseeable misuse when using analog programming

Danger of electrical shock at the power outputs!

If the device is operating in ANALOG mode and the analog programming interface cable is pulled, the output voltage drops to 0V after the unloading time which depends on the connected load.
Once the analog programming interface cable is plugged in again without changing the remote control settings, the last set values will be present at the outputs.

Overview of analog programming:

View of solder side plug   plug connection

Pin| Description| Type| Function

1

| CC| DO| supplies approx. +15 V, if power supply is in constant current mode, equivalent to LED CC, Ri approx. 10 KΩ

2

| CV| DO| supplies approx. +15 V, if power supply is in voltage mode, equivalent to LED CV, Ri approx. 10 KΩ
3| I-MON| AO| actual output current monitor signal 0…10 V, represents 0…Inominal, Ri approx. 10 KΩ
4| VPS| AO| Slider Voltage pot on front panel 0…+10 V, Ri approx. 10 KΩ

5

| Not used|  | For devices of the HCB series without function.
IPS| AO| Slider Current pot on front panel 0…+10 V, Ri approx. 10 KΩ
6| 0VD| D GND| ground for digital signals, may be current loaded.

7

| Not used|  | for devices of the HCB, MCA, MCP, NLN, NTN series without function.
POL-SET| DI| control input for electronic polarity reversal switch (Option) POS = pin (7) open,

NEG = connected to Pin (6) 0VD

V/I REG| DI| switchover voltage/current regulation only applies to the NLB series

V-REG mode: connect Pin7 with Pin6 (Pin7=0), I-REG mode: Pin7 unconnected

8| V-SET| AI| 0…+10 V equals 0…Unominal, input resistance to 0V approx. 10 MΩ
9| 0V| A-GND| ground for analog signals, must not carry any current
10| +10VREF| AO| +10 V Reference (output), max. 2 mA
11| V-MON| AO| actual output voltage monitor signal 0…10 V represents 0…Unominal; Ri approx. 10 KΩ

12

| ****

OUTPUT ON

| ****

DI

| Pin (12) open = OUTPUT OFF,

Pin (12) connected to 0VD Pin (6) = OUTPUT ON

13

| Not used|  | for devices of the MCP series without function.

POL-Status

| ****

DO

| polarity status (option) applies to devices with polarity reversal switch. POS polarity = approx. +12 V,

NEG polarity = 0 V

-10V REF| AO| for the devices of the HCB, NLB series

P-LIM

| ****

DO

| delivers approx. +15 V, when the MCA series device is driven into power limit, equivalent to LED P-LIM on the front panel

S-REG

| ****

DO

| Delivers approx. +15 V, if NTN, NLN series device in SENSE control (only with active sensor operation), equivalent to LED S-ERR on front panel.
14| Not used|  |

15

| Not used|  | for devices of the HCB series
I-SET| AI| 0…+10 V equals 0…Inominal, input resistance against 0 V approx. 10 MΩ
All values of voltages and currents are in DC. D=Digital, A=Analog, I=Input, O=Output

Pay attention to your unit type and options in the coloured lines.

Wiring options

NOTE

An external voltage adjustment necessarily also requires a wiring of the current control and vice versa.

Master-Slave-operation

This function allows symmetrical control of two power supplies.

The sliders of the front panel potentiometers (pin 4 and 5) of the master unit are connected to the setpoint inputs of the slave unit (pin 8 and 15). Additionally, a connection between the 0V pins is necessary.
A bridge (between pin 12 and pin 6) is necessary to enable the output of the slave device. (Master’s wiring of command OUTPUT ON/OFF must be executed in the same way as a single device).

Operation of the analog interface

Enable of OUTPUT ON/OFF

The DC OUPUT is switched on by connecting pin 12 to pin 6, see 1.3
If the DC OUTPUT is switched on with a wire connection between pin 12 and pin 6, the OUTPUT remains active until the connection between pin 12 and pin 6 is open or the mains is switched oW.
In the event of a mains voltage failure, the DC OUTPUT remains enabled. As soon as the mains voltage is supplied again, the DC OUTPUT is active again!

Electric shock possible due to residual voltage at the output!

When the unit is switched oW or in the event of a power failure, residual voltage / current will NOT be displayed on the monitor outputs!Observe the discharge time!

Putting the analog programming option / interface into operation

1. The installation of the analog interface has to be executed when the DC power supply is not in operation!
2. The interface of the control unit shall be connected to the interface of the DC power supply as specified.
3. Now turn on the POWER switch (1).
4. Select the ANALOG operating mode with the switch or The ANALOG LED now lights up. The device is now operated externally via the programming socket!

To switch the power supply oQ, proceed as follows:

1. Set the values at the pin (8) V-SET and pin (15) I-SET to 0
2. Open the connection between Pin 12 and
3. After the output voltage has reached a value < 50 V, switch the device completely oW using the POWER

The DC power supply is switched oW.

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