Artesyn iHP - 4.5 Analog Control

iHP Manual 74 | P a g e
iHP Owners Manual
 IREF will automatically readjust if the voltage request is above the nominal output voltage. This will
prevent module to operate above the rated power.
4.4.3.2.1 DVS Series Connection Protection
Each individual module in a group will protect independently, as stated in Section 4.4.1.
4.4.3.3 DCS Parallel Connection
All modules connected in parallel should:
 be grouped as one using ISOCOMM WebTool
 have the same module configuration.
 have output positive terminals connected in parallel.
 have output negative terminals connected in parallel.
The module will clamp into constant voltage source if the requested IREF or load resistance increases enough
to cause the output voltage to be greater than the VREF. To operate the group in this condition:
 All Module REMOTE_SENSE_+ should be star connected and connected to the desired point of
regulation.
 All Module REMOTE_SENSE_- should be star connected and connected to the desired point of
regulation.
 All Module ISHARE signal (Module’s J2 pin 10) should be star connected.
 All Module D_RTN signal (Module’s J2 pin 4) should be start connected.
To change module output current, send below B2h (IREF) command using Group Device Address.
Device Address
Module Command
Data
<Module Slot Address>
B2h
< Data is the Set Current>
*Before writing to this command, please ensure that the Group Address Write Protect (10h) is disabled.
The desired output current setting should be set to the desired output current at the load.
Parallel Operation DCS “Data” = Total Output Current of the Parallel Module connection.
For example, when setting four modules in parallel to obtain an output current of 100A, the group command
B1h should be set to 100A. Internally ISOCOMM will divide the set current by the number of module and will
set each module output current to 25A.
The module’s output current can be programmed within 0% to 100% of the nominal output current. Setting
the IREF outside the valid range will cause the modules to trigger an INVALID PGM RANGE fault
(STAUS_MFR_SPECIFIC) and turn the output of the modules off. Set the command within valid range to
recover.
4.4.3.3.1 DCS Parallel Connection Protection
Each individual module in a group will protect independently and will protect as stated in Section 4.4.2.