Multi-Tech Systems 7500, 7600 manual Power Quality Configuration, Sag/Swell Module Settings

ION 7500 / ION 7600 User’s GuidePower Quality Configuration

The following setup registers are available in the Calibration Pulser module:

Setup Register	Function	Default
	This numeric bounded register specifies the width, in seconds, of the pulses sent to the hardware
Pulse Width	channel. The Calibration Pulser module maintains a minimum duty cycle of 50% on the output pulse	0.05
	train.
	The numeric bounded register defines how much energy the module accumulates before a pulse is
Kt	sent to the hardware channel. An industry standard for energy pulsing is 1.8, or one pulse per 1.8	1.80
	energy-hours.
Int Mode	Specifies the modes of integration that may be selected. 1	Absolute
OutputMode	This register specifies whether the output is a complete pulse (Pulse) or a change of state transition	Pulse
	(KYZ).
Port	This register specifies which hardware port the output appears on. Only those hardware channels that	Not Used
	are still available appear when you access this setting.

1Refer to the Calibration Pulser module description in the online ION Programmer’s Reference for more details.

Power Quality Configuration

Power quality configuration is provided by a number of modules, depending on your meter type: the Sag/Swell module, the Transient module, and numerous EN50160 frameworks, some of which include the Mains Signalling Evaluation modules.

Sag/Swell Module Settings

The Sag/Swell module monitors voltage waveforms for sags and swells (i.e. ITI (CBEMA) Type 2 and Type 3 disturbances); it then reports each disturbance’s magnitude and duration. The Sag/Swell module can also detect sub-disturbances during a Sag/Swell event. Settings are as follows:

Setup Register	Function	Default
Swell Lim	This is the magnitude above which a voltage deviation is	106
	considered a swell.
Sag Lim	This is the magnitude below which a voltage deviation is considered	88
	a sag.
Change Crit	This is the amount a voltage signal must change during a	10
	disturbance to be considered a new sub-disturbance.
Nom Volts	This is the nominal power system voltage (used for all Power	0 1
	Quality functions).
EvPriority	The priority assigned to Sag/Swell and Transient module events	200
	(0 to 255, 255 is highest).

1The primary power system voltage is sometimes different than the PT Primary setup register value (i.e. when the PT Primary is used to indicate winding ratio rather than primary voltage).

Chapter 3 - Default Meter Functionality Page 59