2.3.5
Connection of the Relay Communication Card
The relay communications card contains six programmable dry contact outputs and two programmable dry contact
inputs, and is standard on the Epsilon STS™. The inputs and outputs are factory programmed according to
functions listed in Table 2-2.
Table 2-2: Relay Contacts (communications card)
1.A
1.B
Note: 1.
2.
1.1
1.2
1.3
1.4
1.5
1.6
The indications 1.X become 2.X for a second optional card of the same type.
86-504004-00 B03
Inputs
Factory Setting
- Select Source S1 as Preferred.
- Select Source S2 as Preferred.
Power sources connected to card must be equipped with protection devices with a maximum breaking capacity of 2A.
Connections must be form "C" Dry Contacts.
Outputs
Factory Setting
- Power supplied to Load.
- Summary Alarm
(source or STS fault).
- STS Fault.
- Overload Condition.
- Source S1
Out-of-Tolerance.
- Source S2
Out-of-Tolerance.
Options (available on both contacts)
Options (available on all contacts)
- Summary Alarm (source or STS fault).
Installation
Installation and User Manual
- Reset Memorized Faults.
- Select Source S1as Preferred.
- Select Source S2 as Preferred.
- Enable Automatic Retransfer.
- Disable Automatic Retransfer.
- Enable Transfers.
- Disable Transfers.
- Power supplied to Load.
- STS Fault.
- Source S1 Out-of-Tolerance.
- Source S2 Out-of-Tolerance.
- Sources Out-of-Phase.
- Source S1 Active.
- Source S2 Active.
- Source S1 is Preferred Source.
- Automatic Transfer Disabled.
- Overload Condition.
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