Table of Contents
Advertisement
Maintenance
5 Maintenance
Regularly maintenance can ensure that the inverter can keep great performance.
DELTA recommends to have a check to the unit every year at least.
The frequency of maintenance should be adjustable depends on the environment
of the site, different seasons and weather impacts.
- Ensure DC and AC cables are always de-energized during the maintenance to
avoid the shock hazard risk!
- Without rain cover or protection, never perform any wiring or maintenance
operations under rainy conditions.
5.1 Open and Close the Door
5.1.1 Disconnect M100_210 from Voltage Sources
1. Disconnect the AC Circuit breaker and secure to against reconnection.
2. Disconnect the DC switch which is in the PV combiner box or on DC Bus, then
secure to against reconnection.
3. Wait 60 seconds and make sure LED indicators of the inverter have gone out.
4. To ensure there is no current in the cables, please use a current clamp to
measure DC/AC cables.
5.1.2 Open the Door
- Before opening the front door, please wipe the inverter case if it is wet to avoid
water seepage.
- Do not leave the door opened for long periods of time.
1. Remove screws of the antenna bracket (Figure 5-1).
2. Use the 4mm hexagon wrench to loose the screw of the protection cover, and
then release the latch locks (Figure 5-1).
3. Open the front door and use the hexagon wrench to fix the door (Figure 5-2).
4. The inverter door can be removed for wider working space during installation
or maintenance (Figure 5-3).
DANGER : ELECTRICAL HAZARD!!
ATTENTION
56
Advertisement
Chapters
Table of Contents
