Emerson MultiFlex ESR Installation And Operation Manual

026-1720 Rev 4 06-APR-2010

MultiFlex ESR Installation and

Operation Manual

Computer Process Controls, Inc.

1640 Airport Road Suite #104

Kennesaw, GA 31044

Phone [phone]

Fax [phone]

ALL RIGHTS RESERVED
The information contained in this manual has been carefully checked and is believed

to be accurate. However, Computer Process Controls, Inc. assumes no responsibility
for any inaccuracies that may be contained herein. In no event will Computer Process
Controls, Inc. be liable for any direct, indirect, special, incidental, or consequential
damages resulting from any defect or omission in this manual, even if advised of the
possibility of such damages. In the interest of continued product development, Com­puter Process Controls, Inc. reserves the right to make improvements to this manual,
and the products described herein, at any time without notice or obligation.

FCC COMPLIANCE NOTICE

This device complies with Class B of Part 15 of the FCC Rules.

Table of Contents

1 INTRODUCTION.......................................................................................................................................................... 1

1.1. M

ULTIFLEX ESR AND ESR-8 BOARD DIFFERENCES ................................................................................................... 1

1.1. RS-485 I/O Network................................................................................................................................................. 1

1.1. Center-Tapped Transformer.................................................................................................................................... 1

1.1. Molex Connectors (Board P/N 810-1398)............................................................................................................... 1

1.1. Hand-Held Terminal (HHT) .................................................................................................................................... 1

1.1. Snap-Track Mounting .............................................................................................................................................. 1

1.2. M

ULTIFLEX ESR MOLEX CONNECTOR BOARD (DISCONTINUED) ............................................................................... 2

2 INSTALLATION........................................................................................................................................................... 2

2.1. P

ANEL MOUNTING AND HEAT DISSIPATION ................................................................................................................ 2

2.2. S

NAP-TRACK INSTALLATION........................................................................................................................................ 2

3 WIRING.......................................................................................................................................................................... 2

3.1. P

OWER.......................................................................................................................................................................... 2

3.2. V

ALVE WIRING............................................................................................................................................................. 3

3.2.1. Molex Connector (Discontinued) Board Wiring................................................................................................... 3

4 SETTING THE TERMINATING RESISTANCE JUMPERS ................................................................................. 4

5 SETTING THE NETWORK ADDRESS AND BAUD RATE .................................................................................. 4

6 SOFTWARE OVERVIEW........................................................................................................................................... 5

6.1. P

ROGRAMMING E2 VERSION 2.21 AND ABOVE ........................................................................................................... 6

6.2. S

TEP 1: ADD A MULTIFLEX ESR................................................................................................................................. 6

6.3. S

TEP 2: ADD A STANDARD CIRCUIT............................................................................................................................. 7

6.4. S

TEP 3: ASSOCIATE THE MULTIFLEX ESR......................................................................................................... .......... 7

6.5. S

TEP 4: SET UP THE STANDARD CIRCUIT .................................................................................................................... 8

6.6. S

TEP 5: SET UP THE MULTIFLEX ESR....................................................................................................................... 10

7 VALVE ZEROING ...................................................................................................................................................... 12

7.1. S

TEP 1......................................................................................................................................................................... 12

7.2. S

TEP 2......................................................................................................................................................................... 12

8 HAND-HELD TERMINAL........................................................................................................................................ 12

8.1. O

VERVIEW .................................................................................................................................................................. 12

8.2. S

CREENS ..................................................................................................................................................................... 13

8.2.1. Main Screen ........................................................................................................................................................ 13

8.2.2. Output Status Screens ......................................................................................................................................... 13

8.2.3. Alarm Status Screens .......................................................................................................................................... 13

8.2.4. Main Select Screen.............................................................................................................................................. 14

8.2.5. Valve Configuration Screens .............................................................................................................................. 14

8.2.6. Network Screen................................................................................................................................................... 14

VALVE SPECIFICATIONS TABLES............................................................................................................................15

E

MERSON FLOW CONTROLS STEPPER VALVES...................................................................................................................15

S

PORLAN (PARKER) STEPPER VALVES................................................................................................................................15

MultiFlex ESR I&O Manual Table of Contents • v

1Introduction

8

3

7

24VAC CT 75 VAC Power Input

Valve Connectors (8)

I/O Network Input

Termination Jumpers

Network Address Switches

General Status LED

1

5

2

3

4

6
7
8

HHT Jack

TX and RX LEDs

9

10

Open LED (8)
Close LED (8)

9

10

1.1. MultiFlex ESR and ESR-8 Board
Differences

The MultiFlex ESR Valve Regulator board (P/N
810-3199), shown in (Figure 1-1), is an RS-485

I/O Network electronic stepper valve regulator
capable of driving up to eight stepper motor
valves, which are typically used to control tem­perature.

RS-485 I/O Network

The MultiFlex ESR communicates with the E2
directly over the RS-485 I/O network, unlike the
previous version of the board, which communi­cated with the controller over the Echelon net­work.

Center-Tapped Transformer

For power, a Class 2, 80VA 24VAC center­tapped transformer is required for each Multi­Flex ESR board. (Previous board versions did
not require a center-tapped power source.)

Molex Connectors (Board P/N 810-1398)

The discontinued MultiFlex ESR board’s valve
outputs are four-contact molex connectors
instead of the screw terminals. Valve cables hav­ing a four-contact molex connector are plugged
directly into the board. This board has been dis­continued and replaced with the new MultiFlex
ESR board version (P/N 810-3199).

Hand-Held Terminal (HHT)

Figure 1-1 - MultiFlex ESR Board Layout

When controlling ECT Flow valves, the Multi­Flex ESR will detect overcurrent, open wire,
stuck valve situations, and generate the appropri­ate alarms. For non-ECT Flow valves, the Multi­Flex ESR will only detect overcurrent situations
and generate an alarm. (See Section 8.2.3.,
Alarm Status Screens for details on alarm
descriptions.)

Set configuration parameters, setpoints, and fail­safe conditions of each valve with the HHT. By
using the HHT, each valve output can be set sep­arately with a valve step rate and the total num­ber of steps from closed to fully open.

Snap-Track Mounting

The MultiFlex ESR board fits into the standard
CPC 4" I/O board snap-track for mounting.

The MultiFlex ESR uses suction side variable­position evaporator regulators (ESRs) to vary
evaporator pressure for an entire circuit and is an
alternative to mechanical EPR control.

The MultiFlex ESR receives input data from a
CPC E2 controller (via the I/O Network) and
then regulates the stepper valves according to
the data from the E2.

1 • MultiFlex ESR I&O Manual 026-1720 Rev 4 06-APR-2010

1.2. MultiFlex ESR Molex Connec-

24VAC CT 75 VAC Power Input

Valve Connectors (8)

I/O Network Input

Termination Jumpers

Network Address Switches

General Status LED

1

5

2

3

4

6
7
8

HHT Jack

TX and RX LEDs

8

3

7

9

10

Open LED (8)
Close LED (8)

9

10

3.5”

4.00”

10.00"

4.75”
TYP 2 PL

MULTIFLEX ESR BOARD

WEIGHT: 9.4 OZ.

O 0.220”
TYP 6 PL

9.5”

tor Board (Discontinued)

Figure 1-2 - MultiFlex ESR Molex Connector Board Layout ­Discontinued (P/N

810-3198)

2 Installation

that enclosure with the MultiFlex ESR, you may
need to ventilate the enclosure by installing air
circulation fans or other devices to aid in heat
dissipation.

2.2. Snap-Track Installation

Boards not supplied with an enclosure are sup­plied with a snap-track for easy installation. The
insulation sheet and I/O board must be removed
from the track before the track is mounted. The
snap-track is mounted using the 0.1875” mount­ing slots. Figure 2-2 shows this installation pro­cedure:

The MultiFlex ESR control board is designed to
be located in a central location, preferably near
the valves it is driving. Figure 2-1 shows the
mounting dimensions of the MultiFlex ESR
board:

Figure 2-1 - MultiFlex ESR Board Dimensions

2.1. Panel Mounting and Heat Dis­sipation

The MultiFlex ESR can generate a substantial

amount of heat when it draws up to a maximum
of 80 VA during operation. The MultiFlex ESR
is rated for a maximum ambient temperature of
65°C (150°F); therefore, depending on the size
of the enclosure and what other devices are in

MultiFlex ESR Molex Connector Board (Discontinued) Installation • 2

Figure 2-2 - MultiFlex ESR Snap-Track Installation

3 Wiring

3.1. Power

Each MultiFlex ESR board requires a Class 2,
80VA 24VAC center-tapped
power. The power connector (labeled J12) is
located in the top left corner of the board.

transformer for