BECKWITH ELECTRIC M-6280A, Инструкция

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M-6280A Digital Capacitor Bank Control
Metering
Figure 1 provides an example of the Metering parameters that are available from the control.

NOTE
: Power Factor and Primary; Phase Current, Watts, VArs and VA are only available when the VAr
Control Mode option is present.
Figure 1 Metering and Status Dialog Screen
Inputs
Switch Power Input
: Nominal 120 VAC, 60 Hz (50 Hz optional); operates properly from 95 VAC to 140 VAC. If
set at 60 Hz, the operating system frequency is from 55 to 65 Hz; if set at 50 Hz, the operating system frequency
is from 45 to 55 Hz. The burden imposed on the input is 8 VA or less. The unit will withstand twice the nominal
voltage for one second and four times the nominal voltage input for one cycle.
Phase Current Input
: Optional 5 A Nominal CT or 10 V ac Line Post Current Sensor input. Appropriate multiplier
is utilized to calculate the primary phase current. Line Post Current Sensor option also contains a Phase Shift
Compensation setting.
Neutral Unbalance Current Input : 200 mA. Appropriate multiplier is utilized to calculate the primary Neutral
Unbalance Current.
An optional 10 VAC Line Post Current Sensor or 5 A (nominal) CT input is available.
Switch Power Input
: Nominal 120 VAC.
Outputs
Close Output : Capable of switching 10 A for 30 sec or 45 A for 25 ms.
Open Output:
Capable of switching 10 A for 30 sec or 45 A for 25 ms.
User-Programmable Alarm Output : One Form "C" contact capable of switching 6 A at 125 VAC or 0.2 A at
125 V dc.
Digital Inputs
Three 12 V dc Inputs for switch status and one internally wetted intrusion detection input.