MODEL: R3-PA4
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
HIGH SPEED PULSE INPUT MODULE
(4 points, isolated)
Input range & 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.
Low-end cutout: 0.1 %
109
(4.29)
mm (inch)
INPUT SPECIFICATIONS
■ Sensor Excitation
MODEL: R3–PA4[1][2]
Voltage: 12 V DC ±10 %
Current: 15 mA
Current limiting circuit: Approx. 30 mA
■INPUT RANGE: 0 – 100 kHz, 0 – 10 kHz, 0 – 1 kHz, 0 – 100
Hz, 0 – 10 Hz, 0 – 1 Hz, 0 – 0.1 Hz
ORDERING INFORMATION
• Code number: R3-PA4[1][2]
Specify a code from below for each of [1] and [2].
(e.g. R3-PA4W/Q)
Minimum pulse width requirement: 5 μsec. for both ON and
OFF
• Specify the specification for option code /Q
(e.g. /C01/SET)
■DETECTING LEVEL
Detecting level: 15 – 100 %
(of operational voltage range across the terminals)
Factory setting: 50 % (programmable using the R3CON PC
Configurator software)
NO. OF CHANNELS
4: 4
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.
■ Open Collector (input terminal 3, gain 1)
Sensor excitation: 12 V DC
[1] COMMUNICATION MODE
S: Single
W: Dual
[2] OPTIONS
blank: none
/Q: With options (specify the specification)
Pull-up resistance: 20 kΩ (shorted across 1 – 3, 6 – 8, 11 –
13, 16 – 18 respectively)
ON voltage: ≤ 1.5 V (≤ 2 kΩ recommended)
OFF voltage: ≥ 2.5 V (≥ 20 kΩ recommended)
(Set detecting level 50 % when the saturation voltage is not
greater than 0.8 V, set 70 % when the saturation voltage is
between 0.8 to 1.5 V.)
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
■ Voltage Pulse (input terminals 1 and 2)
Waveform: Square, sine or similar waveforms
Input impedance: 100 kΩ minimum at input terminal 1
20 kΩ minimum at input terminal 2
EX-FACTORY SETTING
/SET: Preset according to the Ordering Information Sheet
(No. ESU-8399)
Operational voltage across the terminals:
0 – 50 V (input terminal 1, gain 1)
GENERAL SPECIFICATIONS
Connection
0 – 25 V (input terminal 1, gain 2)
Internal bus: Via the Installation Base (model: R3-BSx)
Input: M3 separable screw terminal (torque 0.5 N·m)
0 – 12 V (input terminal 2, gain 1)
0 – 6 V (input terminal 2, gain 2)
R3-PA4 SPECIFICATIONS
ES-8399 Rev.8 Page 1/5
http://www.m-system.co.jp/