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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

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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.