FAULT PLAYBACK - Section 7
MTS-1700 SERIES OPERATION AND REFERENCE MANUAL 7-3
CU A002 15A
MANTA TEST SYSTEMS
For current outputs:
Vout = D - 128 x
Imax RMS where 1 ‹ D ‹ 255
127
Playback
Voltage
Current
Data Value
Output
Output
255
Vmax RMS
Imax RMS
254
126
Vmax RMS 126
Imax RMS
127
127
.
.
129 1
Vmax RMS 1
Imax RMS
127
127
128 0 0
127
- 1
Vmax RMS - 1
Imax RMS
127
127
.
.
1 -
Vmax RMS -
Imax RMS
The playback data values are specified in the RCD 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, and
20.0A on the current, the following commands specify three consecutive samples.
Note that the voltage and current values are instantaneous values.
Command
Va(V) Vb(V)
Vc(V)
I(A)
RCD128,45,176,201
0.0
-85.49 38.48
16.26
RCD130,44,177,202
1.56
-86.52
39.29
16.48
RCD131,40,178,209
2.34
-90.64
40.09
18.04
7.3.1.2 EXAMPLE FOR THE MTS-1710+MTS-1720 - 8 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.
2
2
2
2
2
2
2
2
2
2
2