Delta M15A 220, Operation And Installation Manual

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Figure 3-20: Dry Contact connection
Figure 3-21: Rapid Shutdown System connection
M15A_220 / M20A_220 provides 1 set of dry contacts, which can be used to
control external devices according to the operating status of the inverter.
The terminal block for this function is shown in
Figure 3-20 . The terminals marked
in the figure identify the dry contact connection.
The dry contacts operation are usually open. User can customize the function
of this contact through the APP or DSS.
3.6.4 Dry Contact Connection
M15A_220 / M20A_220 provides a terminal to control the rapid shutdown system.
This terminal provides a 12 VDC, Max.1 A power in normal condition, but the
power will turn-off in 2 seconds when the AC grid outage.
The terminal block for this function is shown in
Figure 3-21
.
1. 22~12 AWG solid or stranded wire is available for the terminal hole and wire
length is limited to 10 M.
2. Stripping length is 6 ~ 7 mm.
3.6.5 Rapid shutdown system connection (optional)
DC+ 12V
GND
36
Installation