MODEL: AS4CT

AS4CT SPECIFICATIONS

ES-1603 Rev.13 Page 2/4

https://www.m-system.co.jp/

• 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

Operational range: 0 – 115 % of rating

S1: 0 – 1 A

S5: 0 – 5 A

Frequency: 50 or 60 Hz

Input burden: 0.1 VA (input 0 – 1 A)

0.5 VA (input 0 – 5 A)

Overload capacity: 1000 % of rating for 3 sec.,

200 % for 10 sec., 120 % continuous

Minimum increment

S1: 0.01 A

S5: 0.01 A

Default setting

S1: 0 – 1 A

S5: 0 – 5 A

OUTPUT SPECIFICATIONS

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)

(Limited within 0.5 A to conform with EU Directive)

Maximum switching voltage: 380 V AC or 125 V DC

Maximum switching power: 120 VA or 30 W

Minimum load: 5 V DC @ 10 mA

0

50

100

▲

Input

(%)

LL

L

▲

▲

HH

H

L2 (1–2)

ON

▲

L3 (1–3)

ON

L4 (9–11)

ON

OFF

OFF

L1 (9–10)

ON

OFF

OFF

Alarm Trip Operation

Terminal No. in parentheses

Example with quad N.O. contacts (LL, L, H, HH)

Trip Operation in Power Failure

• Output code 2: All relays turn off.

• Output code 3: All relays turn on.

• Output code 5: Terminals 1 – 3, 9 – 11 turn on.

INSTALLATION

Power consumption

•AC:

Approx. 4.6 VA at 100 V

Approx. 5.9 VA at 200 V

Approx. 6.8 VA at 264 V

•DC: Approx. 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): ±(0.3 % of FS + 1

digit)

Display accuracy: ±(0.3 % of FS + 1 digit)

Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)

Response time: ≤ 0.7 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