FAULT PLAYBACK - Section 7
MTS-1700 SERIES OPERATION AND REFERENCE MANUAL 7-5
CU A002 15A
MANTA TEST SYSTEMS
7.3.1.3 EXAMPLE FOR THE MTS-1710+MTS-1720 - 14 BIT.
When both the MTS-1710 and MTS-1720 are used for 3
Φ
-voltage/3
Φ
-current fault playback, the following
example command sequence specifies the maximum RMS amplitude output from each of the four channels:
AVA70
AVB92.5
AVC72
AIA20.0
AIB10.4
AIC6.9
The maximum output range is ±1.414 times the maximum RMS amplitude. This defines the output range
as approximately ±99.0V on Va, ±130.8V on Vb, ±101.8V on Vc, ±28.3A on Ia, ±14.7A on Ib, and ±9.76A
on Ic.
The AVA, AVB and AVC commands accept values from 0 to 150.0 (volts). The AIA, AIB and AIC
commands accept values from 0 to 30.0 (amps).
After the maximum range is defined, the actual waveform within the ±maximum limits is defined by an 8
bit offset binary value.
For voltage outputs:
Vout = D - 8192 x
Vmax RMS where 1 ‹ D ‹ 16383
8191
For current outputs:
Vout = D - 8192 x
Imax RMS where 1 ‹ D ‹ 16383
8191
Playback
Voltage
Current
Data Value
Output
Output
16383
Vmax RMS
Imax RMS
16382
8190
Vmax RMS 8190
Imax RMS
8191
8191
.
.
8193 1
Vmax RMS 1
Imax RMS
8191
8191
8192 0 0
8191
- 1
Vmax RMS - 1
Imax RMS
8191
8191
.
.
1 -
Vmax RMS -
Imax RMS
The playback data values are specified in the FPD command. For example, if the maximum RMS
amplitudes were specified, as in the previous example, to be 70.0V on Va, 92.5V on Vb, 72.0V on Vc,
20.0A on Ia, 10.4A on Ib, and 6.9A on Ic, the following commands specify three consecutive samples.
2
2
2
2
2
2
2
2
2
2
2
2