Datakom DPR-400 - Digital Inputs; Relay Outputs

DPR-400 User Manual Rev_01 Firmware V-1.0
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EFFECT OF PHASE SWAPPING
The utility mains is still loaded with 100 kW on each phase. PF in phases L2 and L3 will show -0.50 due
to phase shift between voltages and currents which is caused by CT swapping. As a result, the total
power displayed will be 0 kW. Measured values are as follows:
kW
kVAr
kVA
pf
Phase L1
100.0
0.0
100
1.00
Phase L2
-50.0
86.6
100
-0.50
Phase L3
-50.0
-86.6
100
-0.50
Total
0.0
0.0
300
0.0
Number of Inputs:
4 inputs, all configurable. (16 additional inputs optional)
Input Type:
Optically isolated, digital input
Function Selection:
From list
Contact Type:
Normally open or normally closed (programmable)
Minimum Sensing Duration:
100ms
Active Signal Level:
19-140V-DC
Isolation:
1000VAC, 1 minute
Noise Filtering:
Yes
Number of Relays:
4 relays, all configurable. (16 additional relays optional)
Structure:
Relay output, normally open contact, single common terminal free
contact output.
Circuit Monitoring:
RL-2 and RL-3 outputs only
Max. Switching Current:
5A @250VAC
Max. Switching Voltage:
250VAC
Max. Switching Power:
1250VA
3.4. DIGITAL INPUTS
3.5. RELAY OUTPUTS