Basler Electric BE1-CDS240 General Information - Manual (Page 26)

Input Burden
Burden values shown in Table 1-2 assume nominal value of input voltage applied.
Table 1-2. Contact-Sensing Input Burden
Style Option Nominal Input Voltage
Burden
Jumper (L)
(Low Position)
Jumper (H)
(High Position) Jumper Not Installed
xxxx1xxxxxx 48 Vdc or 125 Vac/dc 22 kΩ 53 kΩ n/a
xxxx2xxxxxx 125/250 Vac/dc 66 kΩ 123 kΩ n/a
xxxx3xxxxxx 24Vdc n/a n/a 6 kΩ
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 BESTlogic operation timing but excludes
input debounce timing and non-standard logic configurations. If a non-standard
logic scheme involves feedback, then one or more BESTlogic update rate
delays must be included to calculate the worst-case delay. An example of
feedback is virtual outputs driving function block inputs. For more information,
see Section 7, BESTlogic Programmable Logic.
IRIG
Standard ......................................................................... 200-98, Format B002
Input Signal ..................................................................... Demodulated (dc level-shifted digital signal)
Logic-High Voltage ......................................................... 3.5 Vdc, minimum
Logic-Low Voltage .......................................................... 0.5 Vdc, maximum
Input Voltage Range ....................................................... +10 to −10 Vdc
Resistance ...................................................................... Nonlinear, approximately 4 kΩ at 3.5 Vdc,
approximately 3 kΩ at 20 Vdc
Real-Time Clock
Accuracy ......................................................................... 1 second per day at 25°C (free running) or ±2
milliseconds (with IRIG synchronization)
Resolution ....................................................................... 1 millisecond
Date and Time Setting Provisions .................................. Front panel, communications port, and IRIG. Leap
year correction provided.
Clock Power Supply Holdup Capacitor ........................... 8 to 24 hours, depending on conditions
Clock Power Supply Holdup Battery ............................... Greater than 5 years
Backup Battery (Optional) .............................................. Lithium battery 3.6 Vdc, 0.95 AH,
Basler Electric p/n: 9318700012 or
Applied Power p/n: BM551902
Communication Ports
Interface
Front RS-232 .................................................................. 300 to 19,200 baud, 8N1, full duplex
Rear RS-232 ................................................................... 300 to 19,200 baud, 8N1, full duplex
Rear RS-485 ................................................................... 300 to 19,200 baud, 8N1, half duplex
1-24 BE1-CDS240 General Information 9365200990 Rev M