Emerson Um380 User manual

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Remote Keypad

Digistart CS

0477-0011-01

User Guide

English

Issue: 1

Product Version 13

General Information

The manufacturer accepts no liability for any consequences resulting from inappropriate, negligent or incorrect installation or adjustment

of the optional parameters of the equipment or from mismatching the starter with the motor.

The contents of this guide are believed to be correct at the time of printing. In the interests of commitment to a policy of continuous

development and improvement, the manufacturer reserves the right to change the specification of the product or its performance, or the

content of the guide without notice.

including, photocopying, recording or by an information storage or retrieval system, without permission in writing from the publisher.

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Contents

1. Introduction.......................................................................................................................................................4

2. Installation.........................................................................................................................................................4

2.1 Mechanical installation...........................................................................................................................................................4

2.2 Connection.............................................................................................................................................................................6

3. Operation...........................................................................................................................................................7

3.1 Operation...............................................................................................................................................................................7

3.2 Trip codes..............................................................................................................................................................................7

4. 4-20 mA Analog Output....................................................................................................................................8

4.1 Overview................................................................................................................................................................................8

4.2 Calibration .............................................................................................................................................................................8

4.3 Programming.........................................................................................................................................................................8

5. Troubleshooting................................................................................................................................................9

6. Specifications....................................................................................................................................................9

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1. Introduction

WARNING

Observe all necessary safety precautions when controlling the soft starter remotely. Alert personnel that machinery may

start without warning.

It is the installer's responsibility to follow all instructions in this manual and to follow correct electrical practice.

Use all internationally recognised standard practice for RS485 communications when installing and using this equipment.

General description

The Remote Keypad allows remote operation of Digistart CS soft starters, and offers the following functionality:

•Operational control (Start, Stop, Reset, Quick Stop)

•Starter status monitoring (Ready, Starting, Running, Stopping, Tripped)

•Performance monitoring (motor current, motor temperature)

•Trip code display

•4-20 mA analog output (motor current)

•Optional RS485 network connection 1

1The Remote Keypad can act as a gateway device for connection to an RS485 serial communications network, allowing remote control

of a motor using Modbus RTU or standard AP ASCII communications protocol. For further information, please refer to the Modbus

Module Instructions.

2. Installation

This section describes how to install the Remote Keypad for basic control and monitoring of a soft starter. The Remote Keypad is

pre-configured to control a soft starter once control supply power is applied to both devices. For basic operation, no parameter

adjustments are required on the Remote Keypad or the soft starter.

In order to use the Remote Keypad's 4-20 mA analog output to monitor motor current, follow the instructions in the section 4-20 mA

Analog Output on page 8.

WARNING

Remove mains and control voltage from the soft starter before attaching or removing accessories.

2.1 Mechanical installation

2.1.1 For use with Digistart CS

In order to use the Remote Keypad with Digistart CS soft starters, a Remote Keypad Module must first be installed to the starter using

the following steps:

Figure 2-1 Attach the module to the starter

1. Remove control power and mains supply from the soft starter.

2. Attach the module to the soft starter as illustrated.

08627.A

2.1.2 Mounting

The Remote Keypad is rated IP54 or NEMA 12 1when mounted correctly in accordance with these instructions. It is intended for use on

the flat surface of a panel, with all external wiring connected from behind the panel.

The Remote Keypad is supplied with a mounting bracket and four fasteners. The built-in gasket seal guarantees protection from outside

the panel.

Select the panel location of the Remote Keypad. The required panel cutout is 92 mm x 92 mm. Place the Remote Keypad through the

cutout and locate the mounting bracket at the rear of the panel onto the four studs. Use the four fasteners to tighten the mounting

bracket up to the rear of the panel.

1For use on a flat surface of a NEMA 1 or NEMA 12 enclosure.

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Figure 2-2 Mounting

Fasteners (x4)

Mounting bracket

Universal panel cutout (92 mm x 92 mm)

Remote Keypad

2.1.3 Dimensions

Figure 2-3 Unit dimensions

120 (4.72) 37.5 (1.48)

7.0 (0.28)

AMPS

CODE

TEMP

START RUN TRIP RS485

START STOP

+RESET

-DATA

PROG

mm (in)

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2.2 Connection

The Remote Keypad requires a minimum of three electrical connections - the external power supply, the chassis earth and the RS485

Starter port. All external wiring, except the chassis earth (M4 stud provided), is connected to spring operated clamp connector terminals

with a maximum wire size of 2.5 mm2. No special tools are required.

Once the Remote Keypad Module has been installed, wire between the Remote Keypad and the module.

Figure 2-4 Remote Keypad connections

Digistart CS

Remote Keypad Module - RS485 serial port

Remote Keypad

B10, B11: 4-20 mA analog output (motor current)

B1, B2, B3: RS485 connection to starter/module

B6, B7, B8: RS485 connection to network

1, 2: power supply (18 to 30 Vac/dc)

For the Remote Keypad to accept serial commands, a link must be fitted across terminals CSL-DI2 on Digistart CS starters.

2.2.1 Grounding and shielding

Twisted pair data cable with earth shield is recommended. The cable shield should be connected to the GND device terminal at both

ends and one point of the site protective earth.

2.2.2 Termination resistors

In long cable runs prone to excessive noise interference, termination resistors should be installed between the data lines at both ends of

the RS485 cable. This resistance should match the cable impedance (typically 120 Ω). Do not use wire wound resistors.

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3. Operation

3.1 Operation

The Remote Keypad performs all soft starter functions except programming of the soft starter. The Remote Keypad can only be used to

program its own parameters.

Figure 3-1 Keypad and display

03206.B

AMPS

CODE

TEMP

START RUN TRIPRS485

START STOP

+RESET

-DATA

PROG

Display: Indicates the value of the selected data.

Display mode indicator: Indicates the data type shown on the display.

Status LEDs: Indicates the status of the starter and the communication link.

Start (green): soft starter is starting, running or stopping

Run (green): soft starter is providing full voltage to the motor

Trip (red): soft starter has tripped

RS485 ON: the serial link between the Remote Keypad and the starter is

healthy

RS485 FLASHING: communication between the Remote Keypad and the

starter has been lost

Control buttons

Start: Starts the motor

Stop: Stops the motor

Reset: Resets the starter

Data/Prog: Selects the data type to be shown on the display (motor current

or motor temperature), or accesses Programming Mode.

1Simultaneously pressing the STOP and RESET buttons initiates a quick stop, which immediately removes voltage from the motor,

ignoring any soft stop time set on the starter.

3.2 Trip codes

If the soft starter trips, the CODE and TRIP LEDs illuminate and the relevant trip code is reported on the Remote Keypad display.

Table 3-1 Trip codes

Code

Description

1-1

Excess start time

1-2

Motor overload

1-3 Motor thermistor

1-4

Current imbalance

1-5

Frequency

1-6

Phase sequence

1-8

Power circuit

1-b Bypass overload

1-C

Communications failure between module and starter

1-H Forced communications trip from the network master

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4. 4-20 mA Analog Output

4.1 Overview

The Remote Keypad has a 4-20 mA analog output for monitoring motor current. The 4-20 mA output is available on terminals B10, B11.

The analog output signal spans from 4 mA when the motor current is zero (when the soft starter is not running) to 20 mA when the

motor current is 125% of the Motor FLC setting in the Remote Keypad (Pr 6).

4.2 Calibration

The Remote Keypad Motor FLC parameter (Pr 6) must be adjusted to match the Motor FLC setting in the soft starter.

The lower end of the analog output signal can be calibrated using the Remote Keypad Analog Output 4 mA Offset parameter (Pr 7).

This is set to give a 4 mA output signal when the motor current is zero.

The 4-20 mA analog output has an accuracy of ±10%. It is not designed for process signal control and should only be used for motor

current monitoring and metering.

4.3 Programming

When the 4-20 mA output is being used, the Remote Keypad's Motor FLC and Analog Output 4 mA Offset parameters (Pr 6and 7) must

be set appropriately (see Calibration). Programming can only be carried out while the soft starter is not running.

4.3.1 Programming procedure

1. To enter Programming Mode, hold down the Data/Prog pushbutton for four seconds. The default value of the first parameter will

be displayed.

2. Use the Data/Prog pushbutton to advance to the next parameter.

3. Use the Stop and Reset pushbuttons to adjust parameter values.

Programming Mode closes when the Data/Prog pushbutton is pressed after Pr 9.

NOTE

There is a 20 second timeout when the Remote Keypad is in Programming Mode. Programming Mode will automatically

close if no input is registered for 20 seconds. Any changes already made will be saved.

4.3.2 Programmable parameters

Table 4-1 Programmable parameters

Parameter

Number Description Default

Setting Adjustable Range

RS485 Network Baud Rate 1

RS485 Network Satellite Address 1

RS485 Network Timeout 1

4 RS485 Network Protocol

Modbus Protocol Parity 1

Motor FLC (A)

1 to 2868

7 Analog Output

4 mA Offset (%)

100 80 to 120

Start, Stop, Quick Stop function

disable

0 = Remote Keypad start, stop, quick stop function enabled.

1 = Remote Keypad start, stop, quick stop function enabled.

2 = Remote Keypad start, stop, quick stop function disabled. 2

3 = Remote Keypad start, stop, quick stop function disabled.

9 Current ÷10 0 0 = off (required for Digistart CS)

1 = on (not suitable for Digistart CS)

1Pr 1to 5only apply when the Remote Keypad is being used as a Modbus or AP ASCII network gateway. See the Modbus Module

User Guide for details.

2Remote Keypad Reset pushbutton is always enabled.

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5. Troubleshooting

Table 5-1 General faults

Display Indication

Problem

Possible Solution

No display

No control voltage

Check that correct voltage is present at terminals 1, 2.

AMPS or TEMP

LED flashing

Soft starter in restart delay mode

Wait for the restart delay (programmed in the soft starter)

to elapse.

Four dashes on display and

RS485 LED flashing The Remote Keypad has detected a

loss of communication on the RS485

link to the soft starter

Verify and solve the cause for loss of communication.

If communication is restored before the soft starter trips,

the display will return to active status and the RS485 LED

will illuminate. If communication is restored after the soft

starter has tripped, the display will indicate the trip code.

Use the Reset button to reset the soft starter fault.

Incorrect or no 4-20 mA analog output

signal

Check the correct voltage is present at terminals 1, 2.

Check that correct polarity is used at terminals B10, B11.

Check that the Motor FLC, Analog Output 4 mA Offset and

Current

10 parameters are set correctly.

The motor cannot be started Check that control voltage is connected to the starter.

•If connected to a Digistart CS, check that terminals

CSL-DI2 on the starter are linked.

Pr 8on the Remote Keypad must be set to 0 or 1.

6. Specifications

Enclosure

Front Panel Height ............................................................................................................................................................... 120 mm

Front Panel Width ................................................................................................................................................................ 120 mm

Inside Panel Depth (when mounted).............................................................................................................................. 30 mm (max)

Panel Cutout ............................................................................................................................................................................92 mm2

Weight....................................................................................................................................................................................... 450 g

Power Suply

Voltage..................................................................................................................................................... 18 - 30 Vdc/Vac (50/60 Hz)

Consumption ........................................................................................................................................ 100 mA (max - steady state)

Connection (Terminals 1, 2) ................................................................................................. 2 pole spring clamp connector terminals

RS485 serial network port (optional)

RS485 Network Interface .......................................................................................... AP ASCII or Modbus RTU protocol (selectable)

Connection (Terminals B6, B7, B8) ...................................................................................... 3 pole spring clamp connector terminals

RS485 serial starter port (soft starter connection)

RS485 Soft Starter Interface............................................................................................................... AP ASCII protocol as standard

Connection (Terminals B1, B2, B3) ...................................................................................... 3 pole spring clamp connector terminals

Analog output

Motor Current Monitoring Interface....................................................................................................... 4-20 mA (max burden 200 Ω)

Connection (Terminals B10, B11)......................................................................................... 2 pole spring clamp connector terminals

Sundry

Enclosure Rating..................................................................................................... IP54 or NEMA 12 when correctly panel mounted

Pollution Degree .................................................................................................................................................. Pollution Degree 3

Operating Temperature .............................................................................................................................................. - 5 oC / + 60 oC

Relative Humidity ............................................................................................................................ 5 to 95% (max non-condensing)

This product has been designed as Class A equipment. Use of this product in domestic environments may cause radio interference, in

which case the user may be required to employ additional mitigation methods.

Approvals

CE ............................................................................................................................................................................IEC 60947-4-2

UL and C-UL .......................................................................................................................................................................... UL 508

C............................................................................................................................................................................ IEC 60947-4-2

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