Global Mainstream Dynamic Energy Technology Ltd.
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User Manual
GHESS 3.7-4.8-SL hybrid system
operations:
1. Turn off the DC breaker of battery cabinet;
2. Turn off DC switch (optional) of Powervortex 3700TL
3. Turn off the AC breaker, which means cut the inverter off the grid
4. Waiting at least 15 min. before maintenance
5. After disconnecting all the cables, please move the inverter to a proper position for
maintenance
Note: if the system is not used for a long time, please turn off the whole system for safety.
6 Troubleshooting
6.1 Safety during Troubleshooting
High electric voltage!
Risk of death or personal injury by electric shock!
Never work with live wires! It is prior to all connection and maintenance work.
Warning!
Danger from residual voltage out of capacitors.
You must wait until the capacitors have fully discharged. Discharge takes
around15 minutes.
Caution!
Danger from inadequate grounding.
An inadequate grounding conductor connection can cause serious injuries to
persons and damage to properties.
1. Make sure that the AC and DC wires are not charged.
2. The connection area should only be opened by a licensed electrician.
6.2 Faults
A fault can be divided into two catalogues: a permanent failure and a temporary failure. A
‘permanent failure’ is defined by a fault having been present for more than 15 minutes and
cannot be acknowledged by inverter’s auto-restart. Unlike permanent failure, a “transient
failure" is automatically acknowledged by the inverter.
6.3 Fault Messages and Actions List
When failure occurs, warning codes will be displayed on the LCD screen. The latest 20 fault
codes will be stored in the EEPROM. Check the history fault information via long-pressing the key
“ESC”. Detailed fault definitions are listed as below:
Fault messages
Explanation
