APS 6RL Series, Operation Manual

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6RL SERIES OPERATION MANUAL
SECTION 7: REMOTE PROGRAMMING
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2018 by Adaptive Power Systems, Inc. (APS) • All Rights Reserved • No reproduction without written authorization from APS.
6RL Series Regenerative DC Load Operation Manual Page 136 of 204
After this, the ModBus message to configure sequence 2, the static voltage would be next.
Start register here is 916:
Addr FC Start Regs Bytes Data CRC Description
0x00 0x10 0x0394 0x10 0x20 0x00000000 Start value of AC part: 0 V
0x00000000 End value of AC part: 0 V
0x00000000 Start frequency of AC part: 0 Hz
0x00000000 End frequency of AC part: 0 Hz
0x00000000 Start angle of AC part: 0°
0x42480000 Start value of DC part: 50V
0x42480000 Start value of DC part: 50V
0x4d2ba950 0x6AD7 Sequenz time in μs: 180,000,000 (180
seconds = 3 minutes)
As the last step, configuration of the arbitrary generator itself:
Addr FC Start Data CRC Description
0x00 0x06 0x035B 0x0001 0x384C Register 859, WSR, Start sequence: 1
0x00 0x06 0x035C 0x0002 0xC98C Register 860, WSR, End sequence: 2
0x00 0x06 0x035D 0x0001 0xD84D Register 861, WSR, Sequence cycles: 1
Now the entire function setup is complete and the function can be started. If the DC Input of
your unit is OFF when starting the function, it will automatically switch on. Alternatively, you
could switch it on separately with the corresponding command before running the function.
In this case this is not necessary, because the voltage shall start to rise from 0 V. In other
situations where the starting voltage is not zero, it is necessary to switch on the DC Input
first and wait for the output voltage to settle.
For the number of sequence cycles, 1 is sufficient, but it can be changed at will. The whole
function would be repeated after 3 minutes and 6 seconds. The voltage would not instantly
drop to 0 V at the end of the first function run and before the second one starts. It depends
on the load how long the voltage takes to drop and the ramp, when being graphically
recorded on an oscilloscope, could look different than expected. This can be circumvented
by adding a third sequence which only uses some time to allow the voltage to go down.
Addr FC Start Data CRC Description
0x00 0x05 0x0352 0xFF00 0x2C7E Register 850, WSC, Run function
7.11.7.3 Procedure for the XY generator
1. Select, whether the function UI (including FC function, register 854) or IU (register
855) or PV (register 426) shall be applied to the DC Input of your unit. Before you
make this selection, the unit cannot accept XY table data, because that data is run
through a feasibility check.
2. Load the XY table data in blocks of 16 values (registers 2600 - 6680). This
corresponds to max. 4096 values. For a working range of 0-125%. Since only 0-100%
(3277 values) can efficiently be used, it suffices to load data for 0-100%.
3. Submit table data (register 858).