Connecting The Time Control For External Processes - SMA SUNNY ISLAND 4.4M Operating Manual

6 Electrical Connection
Value
One‑level load shedding or the first level of
two-level load shedding
Load shedding in the multicluster system
5. Repeat steps 1 to 5 for two-level load shedding. Connect the second load-shedding contactor to an unused
multifunction relay.

6.5.13 Connecting the Time Control for External Processes

The Sunny Island has two timers for time-dependent control of external processes. For each timer, you can set the
starting day and time that the multifunction relay is to be switched once, daily or weekly.
Requirements:
☐ The technical requirements of the multifunction relay must be met (see Section 17 "Technical Data", page 180).
Cable requirements:
☐ Copper wire
☐ Conductor cross-section: 0.2 mm² to 2.5 mm²
1.
Danger to life from electric shock due to incorrect insulation
• Connect the control cable on the Sunny Island to either
multifunction relay Relay1 or Relay2 (see Section 6.6.5
"Connecting Relay 1 and Relay 2", page 65). Use the C
and NO connections.
2. During configuration, enter the value TM1 for timer 1 or the value TM2 for timer 2 in the table of settings (see
Section 7.10.2 "Setting the Functions of the Multifunction Relays", page 108).
54 SI44M-80H-12-BE-en-10
Explanation
Setting for one-level load shedding or the first level of two-level
load shedding. Load shedding is only stopped when the battery
has been sufficiently charged.
Setting for the second level of two-level load shedding. Load shed-
ding is only stopped when the battery has been sufficiently
charged.
Setting for additional one-level load shedding in a multicluster sys-
tem. Load shedding is only stopped when the batteries of the ex-
tension cluster have been sufficiently charged.
SMA Solar Technology AG
NO C NC NO C NC
Relay 1 Relay 2
Operating Manual