Dwyer SCD-PS User Manual

Model

POWER OUTPUT MODULE

SCD-PS

1 Warning

This instruction will be helpful in the installation, electronic specification, function specification and troubleshooting of the SCD-PS.

This is an OPEN TYPE SCD-PS series. The SCD-PS series should be kept in an enclosure away from airborne dust, high humidity,

electric shock risk and vibration. Also, it is equipped with protective methods such as some special tools or keys to open the enclosure,

so as to avoid the hazard to users and the damage to the SCD-PS series.

Never connect the AC main circuit power supply to any of the output terminals, as it will damage the SCD-PS series. Check all the

wiring prior to power up. To avoid any electromagnetic noise, make sure the SCD-PS series is properly grounded

2 Introduction

2.1 Model Explanation

Thank you for choosing Love Control’s SCD series. The Model SCD-PS is a power module and provides 24VDC and 1A current for output

power. It is only used for Love SCD series. The Model SCD-PS is separated from the PLC MPU for better space utilization and easier

installation.

SCD-PS

Nameplate Explanation

Input Power Supply Spec.

Output Module Spec.

Barcode and Serial Number

Model

MODEL : SCD-PS INPUT : 100~24 0VAC 50/60Hz OUTPUT : 24Vdc 1.0A

SCD-PST6360001

Serial Number

SCD-PS T 6 36 0001

Production number Production weeks Production year (2006) Production factory Production model

2.2 Product Profile and Outline

SCD-PS

903

36.5

13.3 60

1 Power LED

2 Output/input terminal (fixed terminal)

3 DIN rail clip

4 DIN rail track (35mm)

5 I/O terminal label

6 Nameplate

Unit: mm

3 Function/Electrical Specification

Model

Item

Power Input

Output Power

Ripple & Noise

100~240 VAC (-15%~+10%), 50 / 60 Hz

24VDC (±3%), output current: 1A max.

Under 100mV

SCD-PS

Typical at full load

p-p

Model

Item

Efficiency

Over Load / Short Circuit Protection

Grounding

Operation/Storage Environment

Agency Approvals

The diameter of grounding wire cannot be smaller than the wire diameter of terminals L and N

(All PLC units should be grounded directly to the ground pole).

Operation: 0℃~55℃ (Temperature), 50~95% (Humidity), Pollution degree 2;

Storage: -25℃~70℃ (Temperature), 5~95% (Humidity)

Underwriters Laboratories, Inc.: UL508 Listed (Industrial Control Equipment)

European Community EMC Directive 89/336/EEC and Low Voltage Directive 73/23/EEC

78%~87% Typical at full load

Auto Recovery

Weight (g)

4 Installation and Wiring

4.1 Mounting Arrangements and Wiring

■ DIN Rail Installation

The SCD-PS can be secured to a cabinet by using the DIN rail that is 35mm

high with a depth of 7.5mm. When mounting the SCD-PS on the DIN rail, be

sure to use the end bracket to stop any side-to-side motion of the SCD-PS,

thus to reduce the chance of the wires being pulled loose. On the bottom of

the SCD-PS is a small retaining clip. To secure the SCD-PS to the DIN rail,

place it onto the rail and gently push up on the clip. To remove it, pull down

on the retaining clip and gently pull the SCD-PS away from the DIN rail.

Please see the figure on the right:

SCD-PS

158

For heat dissipation. Make sure to

provide a minimum clearance of

50mm between the unit and all

sides of the cabinet. (as shown

below)

> 50mm

DVP MPU

> 50mm> 50mm

> 50mm

■ Wiring

Below 6.2

To suit M3.5 screw terminals

Below 6.2

Notes:

1. Please use O-type or Y-type terminals for I/O wiring terminals. The specification for the terminals is

as shown on the left. Tighten PLC terminal screws to a torque of 5~8 kg-cm (4.3~6.9 in-lbs).

2. Please avoid tiny metal material enter SCD-PS when screwing and wiring. After finishing wire,

remove the affix that pasted on the heat sink for heat dissipation.

3. Use Copper Conductors Only, 60℃.

4.2 Wiring Notes

■ Environment

1. DO NOT store the SCD-PS in a dusty, smoky, or corrosive atmosphere.

2. DO NOT store the SCD-PS in an environment with high temperature or high humidity.

3. DO NOT install PLC on a shelf or on an unstable surface.

■ Power Input Wiring

Power input of SCD-PS is AC input; following items should be noticed:

1. Connect the AC input (100VAC ~ 240VAC) to terminals L and N. Any AC110V or AC220V connected to the +24V terminal will

permanently damage the SCD-PS.

2. Please use wires of 1.6mm and above for the grounding.

3. If the power-cut time is less than 10ms, the SCD-PS still operates unaffectedly. If the power-cut time is too long, the SCD-PS will stop

operating and all the outputs will be Off.

5 Trial Run

☼ Power indicator, Running and Test

The “POWER” LED at the front of SCD-PS will be lit (in green) if the power is on. If the indicator is not ON, it indicates that the power

supply is not enough or short circuit. Please check your power wiring.

6 Troubleshooting

Judge the errors by the indicators on the front panel. When errors occurred on SCD-PS, please check:

☼ 「POWER」LED

The “POWER” LED at the front of the MPU will be lit (in green) if the power is on. If the indicator is not on when the MPU is powered up,

please check if power supply is normal. If the indicator is not on when the MPU is powered up and with the input power being normal, it is

an indication that the PLC is malfunction. Please have this machine replaced or have it repaired at a dealer near you.