Satec C191HM Installation And Operation Manual page 30

Table 4-1 Basic Setup Options (∗ default setting)
Code Parameter
ConF Wiring mode
Pt PT ratio
Ct CT primary current 1-6,500A
d.P Power demand
period
n.dp Number of power
demand periods
Ampere/Volt
A.dP
demand period
buF Averaging buffer
size
rSt Reset
enable/disable
Freq Nominal frequency 50, 60 Hz
LoAd Maximum demand
load current
When the power demand period is specified in minutes, synchronization of the demand
interval can be made through communications (see the C191HM ASCII/Modbus
Reference Guides) or via the front panel (see Section 4.11). If the power demand
period is set to External Synchronization, an external synchronization pulse denoting
the start of the next demand interval can be provided through a digital input or can be
simulated by using the synchronization command sent via communications.
60 Hz default for North America; elsewhere, default is 50Hz.
NOTES
1) The maximum value for CT PRIMARY CURRENT × PT RATIO is 10,000,000. If this
product is greater, power related values will be zeroed.
2) Always specify WIRING MODE, PT RATIO and CT PRIMARY CURRENT prior to
setting up alarm setpoints, otherwise the alarm/event setpoints which use these
parameters will automatically be disabled.
Chapter 4 Setup Menus
Options
3OP2 3-wire open delta using 2 CTs
(2 element)
4-wire Wye using 3 PTs (3 element), line to
4Ln3∗
neutral voltage readings
3dir2 3-wire direct connection using 2 CTs (2
element)
4LL3 4-wire Wye using 3 PTs (3 element), line to
line voltage readings
3OP3 3-wire open delta using 3 CTs
(2½ element)
3Ln3 4-wire Wye using 2 PTs (2½ element), line to
neutral voltage readings
3LL3 4-wire Wye using 2 PTs (2½ element), line to
line voltage readings
10*-6,500.0 The phase potential transformer ratio
The primary rating of the phase current
transformer
(5∗)
1, 2, 5, 10, The length of the demand period for power
15*, 20, 30, demand calculations, in minutes. E = external
60, E synchronization
1-15 The number of demand periods to be averaged
for sliding window demands
(1*)
1 = block interval demand calculation
0-1800 s The length of the demand period for
volt/ampere demand calculations in seconds
(900*)
0 = measuring peak current
The number of measurements for RMS sliding
8∗,16,32
averaging
Protects all reset functions, both via the front
diS∗, En
panel or communications.
The nominal power utility frequency
0-6,500A The maximum demand load current used in
TDD calculations (0 = CT primary current)
(0∗)
Description
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