Delta Modulon DPH series

Questions and Answers

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Nancy PerezSep 1, 2025
What to do if Delta Modulon DPH UPS shows 'Bypass Input Freq Out Range'?
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  Laura SotoSep 1, 2025
  If your Delta UPS shows a 'Bypass Input Freq Out Range' error, it could be due to the bypass breaker or switch being turned off, or the bypass AC source's frequency being abnormal. Check if the bypass breaker or switch is off and turn it on if it is. Also, check if the bypass AC source's frequency is abnormal and wait for it to be restored. If the alarm persists, contact service personnel.
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jillgrantSep 12, 2025
What does 'Mains Input Volt Phase Seq Abnormal' mean on my Delta Modulon DPH UPS?
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  Timothy CookSep 12, 2025
  If your Delta UPS shows 'Mains Input Volt Phase Seq Abnormal', it means the wiring is incorrect. Check the wiring and phase sequence of the main AC source, and contact service personnel for assistance.
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Corey DavisAug 30, 2025
Why Delta UPS shows 'Bypass Input Volt Out Range'?
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  Jonathon MoraAug 30, 2025
  If your Delta UPS shows a 'Bypass Input Volt Out Range' error, it could be due to the bypass breaker or switch being turned off, or the bypass AC source's voltage being abnormal. Check if the bypass breaker or switch is off and turn it on if it is. Also, check if the bypass AC source's voltage is abnormal and wait for it to be restored. If the alarm persists, contact service personnel.
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Chase PerkinsSep 14, 2025
What does 'PM Redundancy Loss' mean on my Delta UPS and how to fix it?
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  Patricia LeeSep 14, 2025
  If your Delta UPS displays 'PM Redundancy Loss', it means the connected loads exceed the redundancy setting. Reduce the loads. You can also reset the power module redundancy setting.
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Garrett Spencer MDSep 14, 2025
What should I do if my Delta Modulon DPH UPS reports 'Battery Test Fail'?
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  Gregory PerrySep 14, 2025
  If your Delta UPS reports 'Battery Test Fail', check the batteries. If wrong battery wiring or battery abnormalities exist, contact service personnel for assistance.
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Joan RiveraSep 18, 2025
What does 'EXTCAN Bus Abnormal - Physical' mean on my Delta UPS?
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  Diane ConleySep 22, 2025
  If your Delta UPS displays 'EXTCAN Bus Abnormal - Physical', check if the parallel cable is firmly connected and contact service personnel.
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Nancy NorrisSep 23, 2025
What does 'Charger Over Heat Shutdown' mean on my Delta UPS?
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  Sandra MillerSep 23, 2025
  If your Delta UPS displays 'Charger Over Heat Shutdown', check if any foreign matter blocks the fans and remove it. If the problem persists, contact service personnel.
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Patricia BrownAug 27, 2025
What to do if Delta Modulon DPH displays 'Bypass Breaker Off'?
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  Savannah TorresAug 27, 2025
  If your Delta UPS displays 'Bypass Breaker Off', and you have a single input application, check if the input breaker or switch is turned off and turn it on. If you have a dual input application, check if the bypass breaker or switch is turned off and turn it on. If the alarm message persists, contact service personnel.
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palmerkeithAug 26, 2025
What to do if Delta UPS indicates 'Output Breaker Off'?
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  Sandra RodriguezAug 26, 2025
  If your Delta UPS is indicating 'Output Breaker Off', check if the output breaker or switch is turned off. If it is, turn it on. If the alarm message continues after this, contact service personnel for further assistance.
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Brian WheelerAug 25, 2025
How to fix Delta Modulon DPH UPS when 'Mains Input Volt/ Freq Out Range'?
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  Christopher RoseAug 26, 2025
  If your Delta UPS shows a 'Mains Input Volt/ Freq Out Range' error, first check if the input breaker or switch is turned off and turn it on if it is. Then, check if the main AC source's voltage or frequency is abnormal and wait for it to be restored. If the alarm persists, contact service personnel.

Delta Modulon DPH series Specifications

General

Model	Delta Modulon DPH series
Category	UPS
Frequency	50/60 Hz
Topology	Double Conversion Online
Input Voltage	380/400/415 V (3-phase, 3-wire + PE or 3-phase, 4-wire + PE)
Output Voltage	380/400/415 V (3-phase, 3-wire + PE or 3-phase, 4-wire + PE)
Communication Interface	RS232, SNMP, Modbus
Operating Temperature	0°C to 40°C
Relative Humidity	0 to 95% (non-condensing)
Dimensions	Varies by model
Weight	Varies by model