ES-1605 Rev.19

AS4M

Plug-in Signal Conditioners M-UNIT

POTENTIOMETER ALARM

(dual or quad alarm trip; field-configurable)
Functions & Features
• Provides relay outputs at preset potentiometer resistance
• Quad or dual trip
• Setting and display in engineering unit values
• Setpoint adjustments with the front keypad
• Software lock
• Adjustable hysteresis (deadband)
• On-delay timer
• Hi/Lo trip and energized/de-energized coil independently selectable for each setpoint
• Enclosed relays
• Relays can be powered by 200 V AC and 100 V DC
• High-density mounting on DIN rail
Typical Applications
• Annunciator
• Various alarm applications
 

MODEL: AS4M–[1]–[2][3]

ORDERING INFORMATION

• Code number: AS4M-[1]-[2][3]
Specify a code from below for each of [1] through [3].
  (e.g. AS4M-2-R/UL/Q)
• Specify the specification for option code /Q
  (e.g. /C01/SET)

INPUT POTENTIOMETER

Total resistance 100 Ω – 10 kΩ

[1] OUTPUT

2: 4 points; N.O. or make contact
3: 4 points; N.C. or break contact
5: 2 points; SPDT or transfer contact

[2] POWER INPUT

AC Power
M2: 100 – 240 V AC, 50 – 60 Hz
 (Operational voltage range 85 – 264 V, 47 – 66 Hz)
DC Power
R: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
P: 110 V DC
(Operational voltage range 85 – 150 V, ripple 10 %p-p max.)

[3] OPTIONS (multiple selections)

Standards & Approvals
blank: CE marking
/UL: UL approval, CE marking
Other Options
blank: none
/Q: Option other than the above (specify the specification)

SPECIFICATIONS OF OPTION: Q (multiple selections)

COATING (For the detail, refer to our web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating (UL not available)
TERMINAL SCREW MATERIAL
/S01: Stainless steel (UL not available)
EX-FACTORY SETTING
/SET: Preset according to the Ordering Information Sheet
 (No. ESU-1605)

GENERAL SPECIFICATIONS

Construction: Plug-in
Connection: M3.5 screw terminals
Screw terminal: Chromated steel (standard) or stainless steel
Housing material: Flame-resistant resin (black)
Isolation: Input to output to power
Sampling cycle: 100 msec.
User-configurable items: Front key pad
• Alarm setpoint
• Display range scaling
• Power ON-delay time
• Alarm ON-delay time
• Moving average
• Hi/Lo trip operation
• Coil at alarm
• Hysteresis (deadband)
• 0 %, 100 % input setting
• Latching control
• Others
(Refer to the instruction manual)
■ DISPLAY
LED: 8 mm (.31”) 7 segment, red
Number of display digits: 4 digits for DATA display; 2 digits for ITEM display
Range: -1999 to 9999
(decimal point position selectable)
PV indication: Input signal in engineering unit
Overrange indication: LEDs blinking
Power saving mode: Displays turn off if the keys are untouched for a preset time period
LEDs: Red LEDs turn on when coils are energized.
(L1 and L2 for 2-point alarm.  L1, L2, L3 and L4 for 4-point alarm.)

INPUT SPECIFICATIONS

Minimum span: 10 % of total resistance
Excitation: 0.5 V DC

OUTPUT SPECIFICATIONS

■ Quad Alarm
Relay rating:
120 V AC @ 1 A (cos ø = 1)
240 V AC @ 0.5 A (cos ø = 1)
30 V DC @ 1 A (resistive load)
Maximum switching voltage(Note): 380 V AC or 125 V DC
Maximum switching power(Note): 120 VA or 30 W
Minimum load: 5 V DC @ 10 mA
Mechanical life: 5 × 107 cycles
■ Dual Alarm
Relay rating:
120 V AC @ 5 A (cos ø = 1)
240 V AC @ 2.5 A (cos ø = 1)
30 V DC @ 5 A (resistive load)
Maximum switching voltage(Note): 380 V AC or 125 V DC
Maximum switching power(Note): 600 VA or 150 W
Minimum load: 5 V DC @ 10 mA
Mechanical life: 5 × 107 cycles

(Note): The value indicate capacity of output relay in equipment.
 Use within relay rating for EU and UL.

INSTALLATION

Power consumption
•AC: ≤ 6 VA
•DC: ≤ 3.5 W
Operating temperature: -5 to +55°C (23 to 131°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Surface or DIN rail
Weight: 500 g (1.1 lb)

PERFORMANCE in percentage of FS input

Setpoint accuracy (trip point accuracy): ±(0.1 % of FS + 1 digit)
Display accuracy: ±(0.1 % of FS + 1 digit)
Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)
Response time: ≤ 0.5 sec. (0 – 100 % at 90 % setpoint)
Line voltage effect: ±0.1 % over voltage range
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @1 minute  (input to output to power to ground)

STANDARDS & APPROVALS

EU conformity:
EMC Directive 
  EMI EN 61000-6-4
  EMS EN 61000-6-2
Low Voltage Directive 
  EN 61010-1
  Measurement Category II (output)
  Installation Category II (power)
  Pollution Degree 2
  Input to output to power: Basic insulation (300 V)
RoHS Directive
Approval:
UL/C-UL general safety requirements
  (UL 61010-1, CAN/CSA-C22.2 No.61010-1)

EXTERNAL VIEW

Refer to the instruction manual for detailed procedures.

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM