ETC EchoDIN Power Control Processor Mk2 Installation Manual page 9

ETC Installation Guide
Power Control Processor Mk2
Primary/Secondary Switch
When using a combination of two option cards in an EchoDIN controller, you must position the
Primary/Secondary switch prior to startup. The Primary/Secondary switch controls which set of
circuits responds to each option card.
Option Card 1 will always control positions 1-24. If the Primary/Secondary switch is in the
"Primary" position, Option Card 2 will also control positions 1-24. If the Primary/Secondary switch
is in the "Secondary" position, Option Card 2 will control positions 25-48. See the examples in the
tables below.
Example 1: Single Card Configurations
If you are using a single option card, the following configurations are possible:
Option Card 1
0-10V (positions 1–24) -
-
-
Example 2: Two Card Configuration (Same Card Type)
If you are using two option cards of the same type (e.g. two 0–10V option cards), the following
configuration is required:
Option Card 1
0-10V (positions 1–24) 0-10V (positions 25–48) Secondary
Example 3: Two Card Configurations (Different Card Types)
If you are using two options cards of different types (e.g. one DALI card and one Contact Input
card), the following configurations are possible:
Option Card 1
0-10V (positions 1–24)
Contact Input (positions 1–24) 0-10V (positions 1–24)
Contact Input (positions 1–24) 0-10V (positions 25–48)
DALI (positions 1–24)
Contact Input (positions 1–24) DALI (positions 1–24)
Contact Input (positions 1–24) DALI (positions 25–48)
0-10V (positions 1–24)
DALI (positions 1–24)
Power Control Processor Mk2
Option Card 2
0-10V (positions 1–24)
0-10V (positions 25–48) Secondary
Option Card 2
Option Card 2
Contact Input (positions 1–24) Primary
Contact Input (positions 1–24) Primary
DALI (positions 25–48)
0-10V (positions 25–48)
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Primary/Secondary
Switch Position
Primary/Secondary
Primary
Primary/Secondary
Switch Position
Primary/Secondary
Switch Position
Primary
Secondary
Primary
Secondary
Secondary
Secondary
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