Satec PM172EH series Reference Guide

11
4.2 Basic Setup
Table 4-2 Read Request
Message type (ASCII)
‘1’
Message body (decimal)
Request
Field Offset Length Parameter Range
1 0 3 Parameter identifier see Table 4-4
Response
Field Offset Length Parameter Range
1 0 3 Parameter identifier see Table 4-4
2 3 4 Not used permanently set to 00.0
3 7 6 Parameter value see Table 4-4
Table 4-3 Write Request
Message type (ASCII)
‘2’
Message body (decimal)
Request/Response
Field Offset Length Parameter Range
1 0 3 Parameter identifier see Table 4-4
2 3 4 Not used set to 00.0
3 7 6 Parameter value see Table 4-4
Table 4-4 Basic Setup Parameters
Parameter Identifier Range
Wiring mode
1
W40 0 = 3OP2, 1 = 4LN3, 2 = 3DIR2,
3 = 4LL3, 4 = 3OP3, 5 = 3LN3,
6 = 3LL3
PT ratio U14 1.0 to 6500.0
Nominal secondary voltage (L-L) Q58 10 to 690 V
CT primary current I17 1 to 10000 A
Power demand period D11 1,2,5,10,15,20,30,60 min
255 = external synchronization
2
The number of demand periods F47 1 - 15
Volt/ampere demand period C12 0 to 1800 sec
Averaging buffer size S41 8, 16, 32
Reset enable/disable R42 0 = disable, 1 = enable
Nominal frequency Q51 50, 60
Maximum demand load current Q52 0 to 10000 A, (0 = CT primary current)
The number of pre-event cycles for the
waveform log #1
Q50 1 to 8
The number of cycles in one waveform
series for the waveform log #1
3
Q56 16 to 1280
1
The wiring mode options are as follows:
3OP2 - 3-wire open delta using 2 CTs (2 element)
4LN3 - 4-wire WYE using 3 PTs (3 element), line to 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 (2 1/2 element)
3LN3 - 4-wire WYE using 2 PTs (2 1/2 element), line to neutral voltage readings
3LL3 - 4-wire WYE using 2 PTs (2 1/2 element), line to line voltage readings
2
Synchronization of power demand interval can be made through a digital input.
3
The waveform recorder logs waveforms in series of records. A compound waveform can have as more as 1280 cycles
recorded in 80 consequent records, each record comprising 16 waveform cycles sampled at a rate of 32 samples per cycle.

Satec PM172EH series Specifications

General

Brand	Satec
Model	PM172EH series
Category	Measuring Instruments
Language	English