Wbk17 - specifications, General, Analog inputs – Measurement Computing WBK17 User Manual
Page 37: Comparator, Debounce module, Counter module, Digital inputs, Digital outputs, Detection circuit, Ce compliance

WBK17, Counter/Encoder Module
987996
WBK17, pg. 37
WBK17 - Specifications
General
Power Consumption: 520 mA @ 15V input, 310 mA @ 25V
input (assuming no load on power output)
Input Power Range: 10 to 30 VDC
Input Power Fuse (F201): 4A Mini ATO, user-replaceable
Power Output, to Quadrature Encoder: 5V ±10% @
1000 mA and 15V ±10% @ 500 mA
Output Power Connector: Removable screw terminal block
15V Output Power, to Encoder, Fuse (F1): 1A, Mini ATO,
user-replaceable
5V Output Power, to Encoder, Fuse (F2): 2A, Mini ATO,
user-replaceable
Operating Temperature: 0° to 50°C
Storage Temperature: 0° to 70°C
Vibration: MIL STD 810E, Category 1
Humidity: 0 to 95% RH, non-condensing
Dimensions: 285 mm W x 220 mm D x 35 mm H
(11” x 8.5” x 1.375”)
Weight: 1.5 kg (3.1 lbs)
Analog Inputs
Channels: 8 differential
Input Connections: COM, CH high, CH low
Input Connectors: Removable screw-terminal blocks (2
channels per block)
Input Impedance: 20 Ohm Single-ended; 40 K ohm, double-
ended
Input Voltage ranges:-50V to +50Volts specified;
-75 Volts to + 75 Volts maximum
Resolution: 0.002307 V/bit
DC Accuracy: 0.25% of reading + 200 mV offset
Noise: 5 mVrms (typical); 10 mVrms (maximum)
Common Mode Rejection: -70 dB typical (0 to 60 Hz);
-40 dB guaranteed (0 to 60 Hz)
Coupling: AC or DC, programmable
Analog Sampling Bandwidth: DC to 1 MHz
Filtering: Programmable30 Hz, 20 kHz, 100 kHz,
Single pole low-pass filter
Comparator
Input Threshold: -12.5V to +12.5V referred to input,
programmable in 100 mV steps
Threshold Accuracy: 2% of setting, plus 125 mV offset
Input Hysteresis: 50 mV minimum, 100 mV maximum
Input Frequency: DC to 5 MHz
Sensitivity: 500 mVpp DC to 1 MHz
5 Vpp 1 MHz to 5 MHz
Debounce Module
Debounce Times: 16 selections from 500 ns to 25.5 ms,
Positive or negative edge sensitive, Glitch detect mode
or debounce mode.
Counter Module
Time Base Accuracy: 10 ppm (0° to 50°C)
Five Programmable Modes: Counter, Period, Pulsewidth,
Timing, Encoder
Counter Mode Options: Totalize, Clear on Read, Rollover,
Stop at all Fs, 16-bit or 32-bit, any other channel can
decrement the counter
Period Mode Options: Measure x1, x10, x100, or x1000
periods, 16-bit or 32-bit, 4 time bases to choose from
(20 ns, 200 ns, 2 µs, 20 µs), any other channel can gate
the period measurement
Pulsewidth Mode Options: 16-bit or 32-bit values, 4 time
bases to choose from (20 ns, 200 ns, 2 µs, 20 µs), any
other channel can gate the pulsewidth measurement
Timing Mode Options: 16-bit or 32-bit values, 4 time bases
to choose from (20 ns, 200 ns, 2 µs, 20 µs)
Encoder Mode Options: x1, x2, x4 options, 16-bit or 32-bit
values, Z-channel clearing of the counter, any other
channel can gate the counter
Digital Inputs
Inputs: 8 Digital Inputs
Connector: DB25 female
Configuration: 16TTL-compatible pins
Input Characteristics: TTL-compatible
Input/Output Protection: Diode clamped to ground
and to +5V.
Digital Outputs
Outputs: 8 Digital Outputs
Connector: Removable screw-terminal block
Output Type: Open-drain DMOSFET
Output Pullup Resistor: 27k Ohm to +5V
Output Sink Current: 150 mA/output continuous, 500 mA
output peak (<100 µs), 150 total continuous (per bank of
8 outputs)
Output Voltage Range: 0 to +5V, no external pullup
required; 0 to +30V, with external pullup resistor
Output Resistance: 10 Ohms maximum
Note: All digital outputs are fully programmable with
masking.
Detection Circuit
Digital Pattern Detection Choices: Greater than value, less
than value, inside the window, outside the window.
Detection Setpoints Per Channel: 16. Note that each
detection setpoint can be associated with a digital output port
update (with mask).
CE Compliance
In regard to CE Compliance, refer to the WBK17 Declaration
of Conformity (p/n 1064-0740). As stated in that document,
one of the several requirements for CE compliance is the use
of a WBK17 CE kit (p/n WBK17-CE-Kit). Contact the factory
or your service representative should you desire detailed
information.
The Declaration of Conformity is shipped with the WBK17
module.