Table Of Contents; Page No - Brainchild C21 User Manual

Contents
Chapter 1 Overview Chapter 1 Overview
1-1 General -------------------------5
1-2 Ordering Code ---------------8
1-3 Programming Port ------------9
1-4 Keys and Displays ---------10
1-5 Menu Overview -------------12
1-6 Parameter Descriptions ---13
Chapter 2 Installation Chapter 2 Installation
2-1 Unpaking ----------------------20
2-2 Mounting ----------------------20
2-3 Wiring precautions ----------22
2-4 Power Wiring -----------------25
2-5 Sensor Installation ----------
Guidlines----------------------25
2-6 Sensor Input Wiring --------26
2-7 Control Output Wiring -----26
2-8 Alarm Wiring -----------------30
2-9 Data Communication ------31
Chapter 3 Programming Chapter 3 Programming
3-1 Lockout ------------------------33
3-2 Signal Input -------------------33
3-3 Control Outputs --------------34
3-4 Alarm ---------------------------39
3-5 Configure Display -----------40
3-6 Ramp ---------------------------41
3-7 Dwell Timer -------------------42
3-8 PV Shift ------------------------43
3-9 Digital Filter -------------------44
3-10 Failure Transfer -------------45
3-11 Auto-tuning ------------------46
3-12 Manual tuning --------------47
3-13 Manual Control -------------48
3-14 Data Communication -----50
3-15 PV Retransmission --------50
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Chapter 4 Applications Chapter 4 Applications
4-1 Heat Only Control with
4-2 Cool Only Control -----------52
4-3 Heat-Cool Control -----------53
Chapter 5 Calibration Chapter 5 Calibration --------55
Chapter 6 Specifications Chapter 6 Specifications ----60
Chapter 7 Chapter 7
Modbus Communications---66 Modbus Communications
7-1 Functions Supported -------66
7-2 Exception Responses -----68
7-3 Parameter Table -------------69
7-4 Data Conversion ------------73
7-5 Communication Examples-73
Appendix
A-1 Error Codes ------------------76
A-2 Warranty ----------------------77
UM0C911A
Dwell Timer ------------------51

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