Carel FCM series User Manual

FCM electronic regulator Cod. +302235300 - Rel. 2.0 del 30/11/98
1
Contents
1 Introduction........................................................................................................................................................................................ 2
1.1 General characteristics ...................................................................................................................................................................... 2
2 Codes of instruments and accessories................................................................................................................................................ 2
2.1 FCM* codes...................................................................................................................................................................................... 2
2.2 Accessories ....................................................................................................................................................................................... 2
3 Buttons and displayed indications ..................................................................................................................................................... 3
3.1 Front panel........................................................................................................................................................................................ 3
4 Installation.......................................................................................................................................................................................... 4
4.1 Mounting the instrument ................................................................................................................................................................... 4
4.2 Electrical connections........................................................................................................................................................................ 4
5 Functions............................................................................................................................................................................................ 5
5.1 Serial option...................................................................................................................................................................................... 5
6 Programming and configuring the FCM*......................................................................................................................................... 6
6.1 Standard configuration....................................................................................................................................................................... 6
6.2 Initialisation of FCM* instruments .................................................................................................................................................... 6
6.3 Auxiliary functions............................................................................................................................................................................ 7
6.4 High and Low alarms (not available in slave mode)........................................................................................................................... 8
6.5 Defrosting (not available in SLAVE mode)........................................................................................................................................ 8
6.6 Multifunction digital inputs............................................................................................................................................................... 9
6.7 Multi-function digital output............................................................................................................................................................ 10
6.8 Extra LED indicators....................................................................................................................................................................... 10
7 Programming FCM controllers ....................................................................................................................................................... 11
7.1 Setting the set-point ("St" parameters)............................................................................................................................................. 11
7.2 Accessing "P" parameters................................................................................................................................................................ 11
7.3 Accessing "C" parameters................................................................................................................................................................ 11
7.4 Validity of the modifications............................................................................................................................................................ 12
7.5 Displaying the unit of measure ........................................................................................................................................................ 12
7.6 Setting min. and max. output values ................................................................................................................................................ 12
7.7 Factory-set parameters..................................................................................................................................................................... 13
7.8 Remote Control............................................................................................................................................................................... 13
7.9 Technical specifications................................................................................................................................................................... 13
7.10 Description of the keypad .............................................................................................................................................................. 13
7.11 Using the remote control................................................................................................................................................................ 14
7.12 Setting the access code .................................................................................................................................................................. 14
8 Description of the parameters.......................................................................................................................................................... 15
8.1 Parameters concerning the set-point................................................................................................................................................. 15
8.2 Parameters concerning the analogue output...................................................................................................................................... 16
8.3 Parameters concerning inputs .......................................................................................................................................................... 18
8.4 Alarm parameters............................................................................................................................................................................ 19
8.5 Parameters concerning digital inputs and output .............................................................................................................................. 20
8.6 Parameters concerning the unit of measure ...................................................................................................................................... 21
8.7 Parameters concerning defrost ......................................................................................................................................................... 23
8.8 Parameters concerning keypad and remote control ........................................................................................................................... 24
8.9 Parameters concerning serial connection.......................................................................................................................................... 25
9 Table of Parameters......................................................................................................................................................................... 27
10 Alarms ............................................................................................................................................................................................ 31
11 Technical specifications.................................................................................................................................................................. 32
12 Wiring diagram.............................................................................................................................................................................. 33
12.1 Terminal block.............................................................................................................................................................................. 33
12.2 Power supply:................................................................................................................................................................................ 33
12.3 Connecting probes......................................................................................................................................................................... 34
13 Dimensions...................................................................................................................................................................................... 35

Carel FCM series Specifications

General

Category	Controller
Protection rating	IP20
Series	FCM
Power supply	24 VAC/VDC ±10%
Digital inputs	4
Analog inputs	2
Digital outputs	4
Communication	RS485, Modbus RTU

Summary

1 Introduction

1.1 General characteristics

Describes the general characteristics and adaptability of the FCM series controls.

2 Codes of instruments and accessories

2.1 FCM* codes

Lists the specific codes for different FCM models based on probe type.

2.2 Accessories

Lists available accessories like serial interface and remote control.

3 Buttons and displayed indications

3.1 Front panel

Details the front panel components: Display, LEDs, and buttons, explaining their functions.

4 Installation

4.1 Mounting the instrument

Provides instructions for mounting the FCM controller, including probe and actuator connections.

4.2 Electrical connections

Offers crucial instructions and warnings for safe and correct electrical connections.

5 Functions

5.1 Serial option

Explains how to install and use the serial interface board for network communication.

6 Programming and configuring the FCM*

6.1 Standard configuration

Details the default settings for different FCM models and common configurations.

6.2 Initialisation of FCM* instruments

Guides through the initial steps of programming, including selecting operating modes and parameters.

6.3 Auxiliary functions

Describes extra functions like filtering, min/max limits, soft-start, cut-off, speed-up, and set-point types.

6.4 High and Low alarms

Explains how high and low alarms function, including signals and effects on output.

6.5 Defrosting

Details the defrost function, including thresholds, timing, and probe usage.

6.6 Multifunction digital inputs

Explains the functions of digital inputs ID1 and ID2 and their priority.

6.7 Multi-function digital output

Describes the functions of the relay digital output and its options.

6.8 Extra LED indicators

Explains the meaning of the OUT and AUX LEDs based on operating mode.

7 Programming FCM controllers

7.1 Setting the set-point ("St" parameters)

Guides on how to set the primary and secondary set-point values using the keypad.

7.2 Accessing "P" parameters

Explains how to access and modify frequently-used parameters (P parameters).

7.3 Accessing "C" parameters

Details how to access and modify configuration parameters ("C" parameters) using a password.

7.4 Validity of the modifications

Describes when modifications become operative and the timeout behavior during programming.

7.5 Displaying the unit of measure

Explains how to display units of measure for parameters and their dependence on probe type.

7.6 Setting min. and max. output values

Provides a procedure to set minimum and maximum output values for the 0-10V output.

7.7 Factory-set parameters

Explains how to reset the instrument to its factory default settings.

7.8 Remote Control

Introduces the remote control for programming and parameter modification.

7.9 Technical specifications

Lists key technical specifications of the FCM electronic regulator.

7.10 Description of the keypad

Describes the functions of the keypad buttons and their grouping.

7.11 Using the remote control

Details how to use the remote control, with and without an access code.

7.12 Setting the access code

Explains how to activate or deactivate the access code for the remote control.

8 Description of the parameters

8.1 Parameters concerning the set-point

Describes parameters related to set-point 1 (St1), set-point 2 (St2), operating mode (C00), and differential (P01).

8.2 Parameters concerning the analogue output

Details parameters for minimum/maximum output values (C04, C05), soft-start (C06), cut-off (C07), and speed-up (C08).

8.3 Parameters concerning inputs

Explains parameters for probe type (C13), refrigerant type (C14), and input value limits (C15, C16).

8.4 Alarm parameters

Covers parameters for low/high thresholds (P25, P26), differential (P27), and time-delay (P28).

8.5 Parameters concerning digital inputs and output

Describes functions for digital inputs ID1/ID2 (C29, C30) and the relay output (C31).

8.6 Parameters concerning the unit of measure

Details parameters for displaying the unit of measure (C32) and the normally displayed value (C33).

8.7 Parameters concerning defrost

Covers parameters for defrost threshold start/end (P40, P41), time-delays (P42, P43, P44), and output value (P45).

8.8 Parameters concerning keypad and remote control

Explains parameters for enabling keypad/remote control access (C50) and setting remote control codes (C51).

8.9 Parameters concerning serial connection

Details parameters for serial connection type (C52), address (C53), baud-rate (C54), frame (C55), and delayed response (C56).

9 Table of Parameters

PARAMETERS CONCERNING THE SET-POINT

Lists parameters related to set-points, operating mode, and differential.

ANALOGUE OUTPUT

Lists parameters for minimum/maximum output values, soft-start, cut-off, and speed-up.

INPUTS

Lists parameters for probe type, refrigerant, and input value limits.

ALARMS

Lists parameters related to alarm thresholds, differential, and time delays.

DIGITAL INPUTS and OUTPUTS

Lists parameters for digital inputs and the relay output.

PARAMETERS CONCERNING THE CONTROLLED VARIABLE

Lists parameters for unit of measure and normally displayed value.

PARAMETERS CONCERNING DEFROST

Lists parameters related to the defrost function.

PARAMETERS CONCERNING KEYPAD/REMOTE CONTROL

Lists parameters for keypad and remote control access.

PARAMETERS CONCERNING SERIAL CONNECTION

Lists parameters for serial connection type, address, and baud-rate.

10 Alarms

11 Technical specifications

12 Wiring diagram

12.1 Terminal block

Details the function of each terminal in the wiring diagram.

12.2 Power supply

Provides information and considerations for the instrument's power supply.

12.3 Connecting probes

Illustrates how to connect different types of probes to the instrument.

13 Dimensions