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Operating Instructions

ManualsBrandsSiemens ManualsBuilding automationMD-3HD, MD-12HD, MD-24HD and MD-48HD Networked Multi-Circuit Power Metering Systems User Guide
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Siemens Industry, inc. 62
Configurations
4 Wire 3 ɸ
(Wye)
Service Type
1
V_Input
1 or 2
Description
31 Char
Channels
Volt Ref
CT Type
Range
Phase
Shift
CT Multiplier
CT Sign
CH1
L1 – N [1]
mV [1] or RōCoil [2]
Any > 0A
-3.0˚ to +3.0˚
Any > 0 [1]
0 or 1
CH2
L2 – N [2]
mV [1] or RōCoil [2]
Any > 0A
-3.0˚ to +3.0˚
Any > 0 [1]
0 or 1
CH3
L3 – N [3]
mV [1] or RōCoil [2]
Any > 0A
-3.0˚ to +3.0˚
Any > 0 [1]
0 or 1
Any channel that needs to be turned OFF should set the CT Type to OFF [0].
3 Wire 3 ɸ
(Delta)
Service Type
2
V_Input
1 or 2
Description
31 Char
Channels
Volt Ref
CT Type
Range
Phase Shift
CT
Multiplier
CT Sign
CH1
L1 – N [1]
mV [1] or RōCoil [2]
Any > 0A
-3.0˚ to +3.0˚
Any > 0 [1]
0 or 1
CH2
L2 – N [2]
mV [1] or RōCoil [2]
Same as 1
Same as 1
Same as 1
0 or 1
CH3
L3 – N [3]
mV [1] or RōCoil [2]
Same as 1
Same as 1
Same as 1
0 or 1
Even though CH2 is calculated internally, it is recommended that the CT settings reflect those from CH1, rather than being left at
factory default, to facilitate configuration validation from the RTU.
2 Wire 1ɸ
(Plug
Load)
Service Type
3
V_Input
1 or 2
Description
31 Char
Channels
Volt Ref
CT Type
Range
Phase
Shift
CT
Multiplier
CT Sign
CH1
ANY [1-6]
mV [1] or RōCoil [2]
Any > 0A
-3.0˚ to +3.0˚
Any > 0 [1]
0 or 1
CH2
ANY [1-6]
mV [1] or RōCoil [2]
Any > 0A
-3.0˚ to +3.0˚
Any > 0 [1]
0 or 1
CH3
ANY [1-6]
mV [1] or RōCoil [2]
Any > 0A
-3.0˚ to +3.0˚
Any > 0 [1]
0 or 1
Any channel that needs to be turned OFF should set the CT Type to OFF.
3 Wire 1 ɸ
(Split
Phase)
Service Type
4
V_Input
1 or 2
Description
31 Char
Channels
Volt Ref
CT Type
Range
Phase
Shift
CT Multiplier
CT Sign
CH1
L1 – N [1]
mV [1] or RōCoil
[2]
Any > 0A
-3.0˚ to +3.0˚
Any > 0 [1]
0 or 1
CH2
L2 – N [2]
mV [1] or RōCoil [2]
Any > 0A
-3.0˚ to +3.0˚
Any > 0 [1]
0 or 1
CH3
L3 – N [3]
OFF [0]
Any > 0A
-3.0˚ to +3.0˚
Any > 0 [1]
0 or 1
Even though CH3 is not used for computation it is recommended that the CT settings reflect those from CH1 rather than being left at
factory default to facilitate configuration validation from the RTU.