Checking The Settings Of The Time Relays - SMA PPM-RC-10 Instrucciones De Funcionamiento

SMA Solar Technology AG
9.3

Checking the Settings of the Time Relays

Switching delays are specified via the DIP switches of the two time relays which affect the change-over between active
and redundant Power Plant Manager. If delays or faults occur during this change-over, the DIP switches may not be set
properly.
A
Figure 11 : Position and setup of the relay components with time relay
Position Designation
A Time relay
B Relay component
C DIP switch
D Trimmer
Procedure:
1. Disconnect the product from voltage sources (see Section 7, page 25).
2. Remove each relay component from the DIN rail. Loosen the locking system of the relay component with a
suitable screwdriver.
3. Ensure that the DIP switches on both relay components are set as follows:
DIP switch
S1
S2
S3
S4
4. Use the upper retainers on the rear side to hook the spare part into the upper edge of the DIN rail and press
down in the direction of the DIN rail. This will hook the spring-mounted DIN rail locking mechanism of the relay
component onto the lower edge of the DIN rail.
5. Open the cover of the trimmer.
6. Carefully turn the adjusting screw of the trimmer counter-clockwise up to the stop.
7. Recommission the product (see Section 8, page 26).
Operating manual
B
C
Specified setting
ON
OFF
ON
OFF
9 Maintenance
3 4
1 2
F
O F
D
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