Basler BE1-50BF, Instruction Manual

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1-4 BE1-50BF General Information 9190600990 Rev F
Pickup Range
Continuously adjustable over the range defined by the style number with independent ranges and
adjustments for phase and neutral pickup.
Pickup Accuracy
±
2% or
±
40 mA of pickup setting, whichever is greater.
Pickup Tracking Accuracy (Phase-to-Phase)
0.25 to 2.0 A range — Whichever is greater, 0.025 A or 2% between any two phases.
1.0 to 8.0 A range — Whichever is greater, 0.10 A or 2% between any two phases.
Contact Recognition Time
Less than 2.5 milliseconds.
Adjustment Range of Control Timer
150 to 600 milliseconds.
Adjustment Range of Timer 1 and (optional) Timer 2
18 to 500 milliseconds.
Energizing Time of Output Relay
Approximately 8 milliseconds.
Timing Test Points
Oscilloscope test points are provided on the front panel for precise checking of the control timer, as well
as timer 1. These nominal 10 V test points are optically coupled to the logic circuits to provide 1,500 V
isolation.
Contact Sensing
The sensing circuits require user-supplied contacts with a minimum rating of 0.05 A at 250 Vdc. Sensing
current is supplied by the relay in style with isolated sensing. Styles with non-isolated sensing require an
applied sensing voltage equal to the relay dc power supply input rating.
Contact Sensing Burden
Burden per contact for non-isolated sensing depends on the power supply type. Refer to Table 1-1.
Table 1-1. Burden (Nominal) Per Non-isolated Sensing Contact
Power Supply Type Nominal Burden Per Input
J 3.5 W / 5.5 VA
K 3.5 W
L 1.25 W
Z 7.0 W / 20 VA
Target Indicators
Electronically latched LED type targets indicate that an output relay has energized. Targets are manually
reset by operating the target reset switch. Either internally operated or current operated targets may be
specified. Current operated targets require a minimum of 0.2 A in the output trip circuit, and are rated at
30 A for 1 second, 7 A for 2 minutes, and 3 A continuously.
Power Supply
Power for the internal circuitry may be derived from ac or dc external power sources. Refer to Table 1-2.