Artesyn iHP - Module Command 01 H: MODULE_OPERATION; Module Command 48 H: OV_FAULT_LIMIT_MULTIPLIER; Module Command 4 Bh: UV_FAULT_LIMIT_MULTIPLIER; Table 4-13

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iHP Owners Manual
D9h
IPROG_LOW_LIMIT
DAh
VREF_MAX_LIMIT
DBh
IREF_MAX_LIMIT
5.2.1 Module Command 01h: MODULE_OPERATION
Command to turn-off or turn-on the module.
Module Command 01h Data 80 – Module turn-on
Module Command 01h Data 00 – Module turn-off
5.2.2 Module Command 48h: OV_FAULT_LIMIT_MULTIPLIER
Command to configure the output over voltage level protection in percentage. Data settable between 120% to
130% of the set VREF.
The OV_FAULT_LIMIT_MULTIPLIER function is dependent on the module mode. Please refer to Section 4.3 for
the function of OV_FAULT_LIMIT_MULTIPLIER with respect to module mode.
OVP Level = VREF + (Nominal Voltage * (OV_FAULT_LIMIT_MULTIPLIER – 1))
Example
Module = 48V iHP Module
Module Nominal Voltage = 48V
Set VREF = 35V
OV_FAULT_LIMIT_MULTIPLIER = 125%
OVP Level = VREF + (Nominal Voltage * (OV_FAULT_LIMIT_MULTIPLIER – 1))
OVP Level = 35 + (48 * (1.25 – 1))
OVP Level = 47
5.2.3 Module Command 4Bh: UV_FAULT_LIMIT_MULTIPLIER
Command to configure the output under voltage level protection in percentage. Data settable between 80% to
90% of the set VREF. The UV_FAULT_LIMIT_MULTIPLIER function is dependent on the module mode. Please
refer to Section 4.3 for the function of UV_FAULT_LIMIT_MULTIPLIER with respect to module mode.
UVP Level = VREF - (Nominal Voltage * (1- UV_FAULT_LIMIT_MULTIPLIER))
Ex.
Module = 48V iHP Module
Module Nominal Voltage = 48V
Set VREF = 35V
OV_FAULT_LIMIT_MULTIPLIER = 85%
UVP Level = VREF - (Nominal Voltage * (1- UV_FAULT_LIMIT_MULTIPLIER))
UVP Level = 35 - (48 * (1 - 0.85))