Output Connections; Frequency Outputs - ABB WaterMaster Manual

WaterMaster
Electromagnetic flowmeter

4.6 Output Connections

Caution.

Refer to page 36 for output ratings.

Inductive loads must be suppressed or clamped to limit voltage swings.

Operation of outputs is programmable.

External isolators are not normally required as the pulse and alarm circuit is electrically separated
from all other WaterMaster connections.

4.6.1 Frequency Outputs

Terminal connection
IDs are HART- /
PROFIBUS-variant dependant
Fig. 4.13 Frequency Output Connections
Note. Outputs 1 and 2 are polarity sensitive. The common (negative) connection for these outputs is
designated 'COM'.
IM/WM–EN Rev. M
PLC or Datalogger
XX XX XX XX 42 41 51 61
52
62
COM O/P1 O/P2
4 Electrical Installation
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