Basler Electric DECS-400 - Manual (Page 170)

158 9369700990 Rev R
Generator Current Sensing
Configuration ................................. 1-, 2-, or 3-phases.
Separate cross-current compensation input.
Sensing Ranges ............................ 2 (up to 400% of nominal)
Nominal Sensing Current .............. 1 Aac or 5 Aac
Burden ........................................... <1 VA
Terminals
CTA ............................................... A1, A2
CTB ............................................... A3, A4
CTC ............................................... A5, A6
CCCT ............................................ A7, A8
Field Voltage and Current
Field sensing values are supplied to DECS-400 connector P1 from the Isolation Module (supplied with the
DECS-400). See Field Isolation Module.
Field Isolation Module
Electrical Specifications
Operating Power ........................... +5 Vdc,
±12 Vdc from DECS-400
Sensing Ranges
Field Voltage ...........
±300% of the five nominal ranges: 63 Vdc, 125 Vdc, 250 Vdc, 375 Vdc, and 625
Vdc
Field Current ................................. 0 to 300% of the two nominal shunt ranges: 50 mVdc and 100 mVdc
Signal Output
Field Voltage ........................... 0.9 to 9.1 Vdc (5.0 Vdc = zero field voltage)
Field Current ........................... 2.0 to 9.5 Vdc (2.0 Vdc = zero field current)
Physical Specifications
Temperature
Operating ................................ –40 to 60
°C (–40 to 140°F)
Storage ................................... –40 to 85
°C (–40 to 185°F)
Weight 680 g (1.5 lb)
Size ............................................... Refer to the Installation chapter for isolation module dimensions.
Contact Inputs
Sixteen contact inputs accept dry switch/relay contacts or open-collector outputs from a PLC. There are
six fixed-function contact inputs and 10 programmable contact inputs.
Interrogation Voltage ..................... 12 Vdc
Fixed Function Inputs
•
AVR
∗
•
Manual
∗
•
Lower †
•
Raise †
•
Start
∗
•
Stop
∗
∗ Functions are activated by a momentary input.
† Functions are active only when the corresponding contact input is active.
Specifications DECS-400