AC-DC POWER SUPPLIES

12

Signals & Controls

16 Jun 2023

Analogue Signals

Digital Signals

Name

Global, On Chassis Local On Module

Description

AC OK

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Global AC OK is an isolated transistor of an optocoupler providing a minimum of 5ms

warning of loss of output regulation. The signal is fully isolated and the collector and emitter

must be connected externally. Maximum sink current 2mA. Maximum voltage 60V.

DC OK

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Global DC OK is an isolated transistor of an optocoupler providing warning that the output

voltage has fallen below 90% of nominal. The signal is fully isolated and the collector and

emitter must be connected externally. Maximum sink current 2mA. Maximum voltage 60 V.

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Module DC OK is a nominal ‘ON’ isolated transistor of an optocoupler which provides a

warning of loss of output regulation on the main output module. Maximum sink current

2mA. Maximum voltage 60V.

Inhibit

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Global inhibit is an isolated control signal input which turns the power supply off by

supplying 2 to 5mA into the pin.

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Module inhibit signal is an isolated control signal which turns the module off by supplying

2 to 5mA into the pin.

Voltage Program

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Non-isolated analogue input, referenced to the module -Sense, pin 1. 0VDC - 5VDC input

will program the module over the range shown in the module table.

Current Share

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Connecting pins 3 and 4 of like voltage modules (4 maximum) will force the current to share

between the outputs.

Name

Description

Select Module (PAGE)

Each module can be addressed individually via this PMBus commands.

On/Off (OPERATION)

The command will turn off or turn on the selected module.

Voltage Program (VOUT_COMMAND)

The command will set the output voltage of the selected module. If multiple modules are

connected in parallel, this command will be applied to all paralleled modules.

Maximum Voltage Level (VOUT_MAX)

This command will set an upper limit of the selected output module voltage. If a voltage is

programmed via Voltage Program (VOUT_COMMAND) above to be higher than VOUT max.

This maximum voltage level will take priority and limit the voltage to this set level. If multiple

modules are connected in parallel, this command will be applied to all paralleled modules.

Overvoltage Alarm Set Point (VOUT_OV_FAULT_LIMIT)

The command will set the selected module’s voltage threshold value such that any

measured output voltage above this threshold will signal a fault. If multiple modules are

connected in parallel, this command will be applied to all paralleled modules.

OCP Set Point (IOUT_OC_FAULT_LIMIT)

The command will set the selected module’s current threshold value such that any

measured output current above this threshold will signal a fault. If multiple modules are

connected in parallel, this command will be applied to all paralleled modules.

Output Voltage Readback (READ_VOUT)

This command will return the actual measured output voltage value of the selected module.

Output Current Readback (READ_IOUT)

This command will return the actual measured current voltage value of the selected module.

Unit Temp Readback (READ_TEMPERATURE1)

This command will return the actual measured highest temperature value from the various

monitored points.

XP Power Readback (MFR_ID)

This command will return the XP Power name as the manufacturer.

Stock Key Readback (MFR_MODEL)

This command will return the STOCK KEY of the product and not the model number. This

assumes the product has been configured by XP Power and not via distribution.

Combined Fault Alarm (STATUS_MFR_SPECIFIC)

OCP, SCP, OTP, UVP, OVP

Output Overvoltage Warning (STATUS_VOUT)

This command will signal 3 different output voltage faults. Vout >10% warning of Vprogram,

Vout >15% fault of Vprogram & when a voltage is programmed greater than the overvoltage

set point.

Output Over Current Warning (STATUS_IOUT)

OC Fault & Warning

Over Temp Warning (STATUS_TEMPERATURE)

OT Fault & Warning as set by OT_Fault and OT_Warn.

Fan Fail (Optional) (STATUS_FAN_1_2)

This command will signal 2 different fan fail conditions when the 3 wire fan option has been

selected. Fan speed below 3000RPM fault expected speed and below 5000RPM warning

expected speed.

Series