Irig interface, Real-time clock – Basler Electric BE1-11m User Manual

Page 457

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9424200996 Rev L

445

Input Burden

Burden values shown in Table 191 assume nominal value of input voltage applied.

Table 191. Contact-Sensing Input Burden

Style Option

Nominal Input Voltage

Burden

Jumper Installed

(Low Position)

Jumper Not Installed

(High Position)

Mxx1xxxxxxxxxx

48 Vdc or 125 Vac/dc

22 k

53 k

Mxx2xxxxxxxxxx

125/250 Vac/dc

66 k

123 k

Mxx3xxxxxxxxxx

24 Vdc

n/a

6 k

Recognition Time
Programmable ........................................................... 4 to 255 ms

Note

All timing specifications are for the worst-case response. This includes
output contact operate times and standard BESTlogicPlus operation
timing but excludes input debounce timing and nonstandard logic
configurations. If a nonstandard logic scheme involves feedback, then
one or more BESTlogicPlus update rate delays must be included to
calculate the worst-case delay. An example of feedback is logic
outputs driving logic inputs. For more information, see BESTlogicPlus.

Terminals
IN1 ............................................................................. B1, B2
IN2 ............................................................................. B3, B4
IN3 ............................................................................. B5, B6
IN4 ............................................................................. B7, B8
IN5 ............................................................................. E1, E2
IN6 ............................................................................. E3, E4
IN7 ............................................................................. E5, E6

IRIG Interface

Interface supports IRIG Standard 200-04, Format B006.
Input Signal ............................................................... Demodulated dc. Level-shifted, digital signal
Input Voltage Range .................................................

±10 Vdc maximum

Input Resistance ....................................................... Nonlinear, approximately 4 k

Ω at 3.5 Vdc,

approximately 3 k

Ω at 20 Vdc

Terminals................................................................... A1, A2

Logic Voltage Threshold

High ........................................................................... 3.5 Vdc minimum
Low ............................................................................ 0.5 Vdc maximum

Real-Time Clock

Clock has leap year and selectable daylight saving time correction. Backup capacitor and standard
backup battery sustain timekeeping during losses of BE1-11m operating power.
Resolution ................................................................. 1 s
Accuracy....................................................................

±1.73 s/d at 25°C

BE1-11m

Specifications

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