Hardware Manual

Hardware Manual PCD 1 / PCD 2 Series│Document 26 / 737│Edition EN 15│2008-07-22

Saia-Burgess Controls AG

PCD2.H100

Input/output (I/O) modules

5

5.15.1 PCD2.H100, counting module up to 20 kHz

Application

Simple counting module, comprising two inputs “A” and “B” plus one direct control

output marked “CCO”; allows counting of the number of revolutions or the calculation

of distances (pulses) and the measurement by counting of pulses within a logical

AND gate (second input).

Typical areas of application:

● Counting revolutions or distances (impulses)

● Presetting a count value and switching off output CCO when Counter = 0

● Measurement by counting: measuring signals counted only when particular

conditions are met, e.g. photoelectric barrier covered

● Counting with recognition of count direction for incremental shaft encoders

providing simple motion control

Technical data

Number of systems: 1

Counting range: 0 ... 65,535 (16 bit) (can be extended with CPU counters)

Counting frequency: max. 20 kHz (at pulse/pause ratio 50 %)

Data protection: All data in this module are volatile

(non-volatile PCD registers are available).

Digital inputs

“IN-A” and “IN-B” signal voltages: nominal voltage: 24 V24 VDC

“low” range: -30...+5 V-30 ... +5 V

“high” range: +15...30 V for source operation+15 ... 30 V for source operationfor source operation

Input current: typically 7.5 mA

Input filer: 25 kHz

Process output

Counter controlled output CCO: counter output (switches when count is 0 or 65,535) (switches when count is 0 or 65,535)(switches when count is 0 or 65,535)

Current range: 5 ... 500 mA (max. current leakage 1 mA)

(min. load resistance 48(min. load resistance 48 48 �� in voltage�� in voltage�� in voltage voltagevoltage

range 5...24 V).range 5 ... 24 V).).

Voltage range: 5 ... 32 V smoothed, residual ripple max. 10 %residual ripple max. 10 %

Circuit type: Electrically coupled, not short circuit protected,

positive switching

Voltage drop: typically 2V at 500 mA

Output delay: < 10 μs, (longer for inductive load due to

protective diode).

Power supply

External supply 5 ... 32 VDC, (for supply of CCO output only)for supply of CCO output only)

Internal current consumption:

(from +5 V bus)from +5 V bus)

max. 90 mA

Internal current consumption:

(from V+ bus)

0 mA

External current consumption: CCO output load current

Operational conditions

Ambient temperature operation: 0 ... +55 °C without forced ventilation,

storage: -20...+85 °C-20...+85 °C-20 ... +85 °C

Noise immunity: EC mark according to EN 61 000-6-3 and EN 61 000-6-2