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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mwashingtonSep 2, 2025
What should I do if my Delta UPS says 'Bypass STS Over Heat Warning'?
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  sawyermelissaSep 2, 2025
  If your Delta UPS displays a 'Bypass STS Over Heat Warning', first check if any foreign matter is blocking the fans or air inlet and remove it. Then, decrease some of the connected loads. If the alarm message persists after these steps, contact service personnel.
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Christopher ByrdSep 3, 2025
What to do if Delta UPS displays 'Battery Under Temperature'?
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  schultzellenSep 3, 2025
  If your Delta UPS displays 'Battery Under Temperature', check the battery constant temperature equipment. Also, check if the batteries are abnormal; if so, contact service personnel.
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Cheryl AllenSep 3, 2025
What to do if Delta Modulon DPH displays 'Battery Life Expired'?
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  Dawn CarrSep 4, 2025
  If your Delta UPS displays 'Battery Life Expired', check if the battery replacement date is due. If it is, contact service personnel. Also, check the setting of the system date and correct it if there is any error.
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charlene09Sep 4, 2025
What to do if Delta Modulon DPH UPS displays 'Bypass Volt Out ECO Range'?
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  Patty LopezSep 4, 2025
  If your Delta UPS displays 'Bypass Volt Out ECO Range', check the bypass AC source's voltage or frequency. If it is abnormal, wait for the bypass AC source to be restored.
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davistiffanySep 5, 2025
What to do if Delta Modulon DPH UPS shows 'PM Repair Switch Open'?
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  Randy SpencerSep 5, 2025
  If your Delta UPS displays 'PM Repair Switch Open', turn on the #n power module’s switch. If the alarm message persists, contact service personnel.
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Chris MunozSep 6, 2025
What does it mean if my Delta Modulon DPH displays 'Battery End of Discharge Imminent'?
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  Joshua MaySep 6, 2025
  If your Delta UPS displays 'Battery End of Discharge Imminent', and there is no bypass power feeding the system, shut down the connected loads in accordance with normal procedures as soon as possible, because the battery voltage is lower than the alarm value.
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Paul MurraySep 7, 2025
What does it mean if my Delta UPS displays 'Battery End Of Discharge'?
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  Barry PhillipsSep 7, 2025
  If your Delta UPS displays 'Battery End Of Discharge', and there is no bypass power feeding the system, shut down the connected loads in accordance with normal procedures as soon as possible, because the battery voltage is lower than the End-of-Discharge setup value.

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