MODEL: R3-PA4B
Internal power: Via the Installation Base (model: R3-BSx)
Screw terminal: Nickel-plated steel
Remote I/O R3 Series
Isolation: Input 1 to input 2 to input 3 to input 4 to internal
bus or internal power
LOW SPEED TOTALIZED PULSE INPUT MODULE
(4 points, isolated)
Input gain: Selectable with the side DIP SW
RUN indicator: Bi-color (red/green) LED;
Red when the bus A operates normally;
Green when the bus B operates normally;
Amber when both buses operate normally.
ERR indicator: Bi-color (red/green) LED;
Red with input abnormality;
27.5 (1.08)
130
(5.12)
Green in normal operating conditions.
Count reset: Via DIP switches on the side
109
(4.29)
mm (inch)
INPUT SPECIFICATIONS
■ Sensor Excitation
MODEL: R3–PA4B[1][2]
Voltage: 12 V DC ±10 %
Current: 15 mA
Current limiting circuit: Approx. 30 mA
■MAXIMUM FREQUENCY: 100 Hz
ORDERING INFORMATION
• Code number: R3-PA4B[1][2]
Specify a code from below for each of [1] and [2].
(e.g. R3-PA4BW/Q)
Minimum pulse width requirement: 5 msec. for both ON and
OFF
■DIVIDING RATIO: 1 – 50000 (programmable using the
R3CON PC Configurator software;
• Specify the specification for option code /Q
(e.g. /C01/SET)
factory setting ‘1’)
■COUNT RANGE: 1 – 100 000 000 (0 at reset)
Min. and max. pulse range selectable using the R3CON PC
Configurator Software. Refer to the R3CON Users Manual for
detailed information.
NO. OF CHANNELS
4B: 4 channels, low speed totalized pulse input
Count at overflow: Reset and restart at ‘1.’
Recount start value at over flow: 0 or 1
Maximum count: 1000 – 800 000 000
■DETECTING LEVEL
[1] COMMUNICATION MODE
S: Single
W: Dual
Detecting level: 15 – 100 %
[2] OPTIONS
blank: none
(of voltage across the terminals)
Factory setting: 50 % (programmable using the R3CON PC
Configurator software)
/Q: With options (specify the specification)
Current limiting circuit: Approx. 30 mA
Note 1. Each channel has three sets of input terminals.
Input terminal 1: 2 – 5, 7 – 10, 12 – 15, 17 – 20
Input terminal 2: 3 – 5, 8 – 10, 13 – 15, 18 – 20
Input terminal 3: 4 – 5, 9 – 10, 14 – 15, 19 – 20
Note 2. Gain 1 or Gain 2 selectable with the side DIP SW.
Note 3. Measured as 0 % below 15 % of the range.
■THRESHOLD
SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating
EX-FACTORY SETTING
/SET: Preset according to the Ordering Information Sheet
(No. ESU-8387)
Pulse logic is detected by comparing input pulse voltage
and the detecting level. Detecting ‘Rise’ or ‘Sink’ can be
switched by using the R3CON PC Configurator software;
factory setting ‘Rise’)
GENERAL SPECIFICATIONS
Connection
■ Open Collector (input terminal 3, gain 1)
Sensor excitation: 12 V DC
Internal bus: Via the Installation Base (model: R3-BSx)
Input: M3 separable screw terminal (torque 0.5 N·m)
Pull-up resistance: 20 kΩ (shorted across 1 – 3, 6 – 8, 11 –
R3-PA4B SPECIFICATIONS
ES-8383 Rev.7 Page 1/5
http://www.m-system.co.jp/