
Manual 37139C
UMT 1 - Measuring Transducer
© Woodward
Page 29/62
Measuring System
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NOTE
The measuring transformer must be connected in accordance with the measuring system. Refer to
Measuring Systems on page 38
Connection type
Measuring system
1W, 1W4, 1W3, 2W3, 2W4
Select the measuring configuration to be utilized by the control unit. For a descrip-
tion of each configuration refer to Appendix A: Measuring Systems starting on page
Pulse Output for Energy Counter
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NOTE
The pulse output of the energy counter is not calibrated. All units manufactured up to version 2.0xx
have a fixed signal output of 100ms. All units manufactured after version 2.1xx are equipped with a va-
riable signal output duty cycle (length of output).
Pulse output
P.duration 0.00s
Length of the output signal
0.04 to 1.00 s
The length of the output signal of the "Open Collector" output (terminal 60/61) may
be set here. With this parameter is possible to adjust exactly to the time of an exter-
nal pulse counter (i.e. the input of an PLC).
Pulse output
+kWh
Selecting the energy output
+kWh / -kWh / +kvarh / -kvarh
With this screen the type of the output of the energy pulses may be determined on
the pulse output (terminal 60/61). It is possible to select between the positive or
negative real power, the inductive or capacitive re-active power. Only one type of
the operating pulse may be output. According to this setting the following screens
will be different.
Screens for "+kvarh" and "-kvarh" Setting
Pulse/kvarh
logic negative
Counter pulse to measure the re-active energy
positive/negative
The output of the kvarh pulse (inductive as well as capacitive) may occur both nega-
tive (per kvarh pulse the Open Collector output [terminal 60/61] is opened) and pos-
itive (per kvarh pulse the Open Collector output [terminal 60/61] is closed).
Reactive energy
Pulse/kvah 000.0
Counter pulse of the re-active energy
0.1 to 150.0
The number of the pulses/kvarh can be entered in this screen.