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Using the power supply
8.
Digital interface cards
8.1
General
The power supply supports various optionally available interface
cards for digital or analog remote control. All cards are galvanically
isolated. Following isolation voltages are given:
• USB (IF-U1), CAN (IF-C1), RS232 (IF-R1): 2000 V DC
• GPIB (IF-G1): 2000 V DC
• Ethernet (IF-E1b): 1500 V DC
• Extended analog interface (IF-A1): 2000 V DC
Note
Before picking an interface for remote control, consider the
isolation voltage and carefully check if the particular isolation
voltage is sufficient for the target application!
The digital interface cards IF-R1 (RS232), IF-C1(CAN) and IF-
U1(USB) use a uniform communication protocol. Up to 30 units
can be controlled from a PC at once with these cards.
The GPIB interface IF-G1 (IEEE 488) offers a SCPI command
structure for up to 15 units per bus.
The Ethernet/LAN interface IF-E1 also provides SCPI command
set, as well as a browser surface. It features an additional USB
port which makes the device accessible like with the IF-U1 card.
The interface card IF-A1 is an extended analog interface, which
features a higher isolation voltage than the built-in analog inter-
face, as well as variable input voltage range and much more. For
more information, please refer to the interface cards operating
guide, which is supplied on the CD that is included with the inter-
face or available upon request or on our website.
8.2
Configuring the interface cards
The interface cards have to be configured once and each time
they're replaced. This is done using the menu
+
Communication +
Slot: { IF-... }
depends on what is equipped
Device node
= {1..30}
Up to 30 device nodes (addresses) can be as-
signed to device, one per unit. A device node
must only be assigned once if multiple units are
controlled.
If Profibus card IF-PB1 is equipped, this is available instead:
Profibus address
= {1..125}
One of max. 125 possible addresses for slave
can be selected. This setting is only available if
a Profibus cards IF-PB1 is plugged.
An equipped interface card is automatically recognized by the
unit. The menu selection displays the equipped card with its
product code.
Configuring the various cards
Since all cards have different parameters to configure, these are
explained in detail in the corresponding operating guide. Please
refer to it.
58
Date: 02-05-2016
9.
9.1
The internal 15 pole analog interface is located on the front and
offers following possibilities:
• Remote control of current and voltage
• Remote control of power 0...100% (models from 1 kW)
• Remote monitoring of status (OT, OVP, CC, CV)
• Remote monitoring of actual values
• Remotely switching the output on/off
The input voltage range for the analog inputs of 0...5 V or 0...10 V
is selected in the device (see section „9.3 Settings for the analog
interface"). The reference voltage VREF, put out on pin 3 of the
analog interface, is depending on that selection.
Useful hints:
• Controlling the device with analog voltages requires to switch
it to remote control with pin „REMOTE" (5).
• Before connecting the application that is used to control the
power supply, make sure to wire all cables correctly and check
if the application is unable to input voltages higher than speci-
fied (max. 12 V).
• The input REM-SB (remote standby, pin 13) overrides the
pushbutton ON. It means, the output can not be switched on
by the button if the pin defines the output state as „off", except
• The output VREF can be used to build set values for the set
value inputs VSEL, CSEL and PSEL. For example, if only cur-
rent control is required, pin VSEL can be bridged to VREF and
CSEL is either fed by an external voltage (0...5 V or 0...10 V)
or via a potentiometer between VREF and ground. Also see
next section.
• Putting in set values up to 10 V while 0...5 V range is selected
will ignore any value above 5 V (clipping) and keep the set
Communication.
value at 100%.
• Remote control is not possible if the user has switched the
device to U/I/R mode on a model where internal resistance
control is unlocked. The internal resistance set value can not
be controlled by analog interface!
• The ground of the analog interface are related to minus
Default:
1
output.
9.2
Default:
1
Internal analog interface
General
local
mode is active. Also see section 6.9.
Sub-D socket overview
© 2006, Elektro-Automatik GmbH & Co. KG
Irrtümer und Änderungen vorbehalten
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Operating Guide
PSI 8000 T Series
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