Emerson XR75CX - Default Chapter; Table of Contents

Table of Contents • i
Table of Contents
1 INTRODUCTION.......................................................................................................................................................... 1
1.1. G
ENERAL WARNING ..................................................................................................................................................... 1
2 OVERVIEW ................................................................................................................................................................... 1
2.1. G
ENERAL DESCRIPTION................................................................................................................................................ 1
2.2. O
RDERING CODE ......................................................................................................................................................... 1
3 CONTROLLING LOADS ............................................................................................................................................ 2
3.1. C
OMPRESSOR ................................................................................................................................................................ 2
3.2. D
EFROST ....................................................................................................................................................................... 2
3.3. C
ONTROL OF EVAPORATOR FANS ................................................................................................................................ 2
3.3.1. Forced Activation of Fans..................................................................................................................................... 2
3.3.2. Cyclical Activation of the Fans With Compressor Off.......................................................................................... 2
3.4. L
IGHT RELAY CONFIGURATION (PAR OA3; TERM. 1-4) ........................................................................................... 3
3.4.1. Light Relay ............................................................................................................................................................ 3
3.4.2. Auxiliary Relay – oA3=AUS ................................................................................................................................. 3
3.4.3. On/Off Relay – oA3=onF...................................................................................................................................... 3
3.4.4. Neutral Zone Regulation...................................................................................................................................... 3
3.4.5. Alarm Relay........................................................................................................................................................... 3
3.4.6. Night Blind Management During Energy Saving Cycles...................................................................................... 3
4 FRONT PANEL COMMANDS.................................................................................................................................... 4
4.1. K
EYS AND FUNCTIONS ................................................................................................................................................. 4
4.2. U
SE OF LEDS ............................................................................................................................................................... 4
5 MAX AND MIN TEMPERATURE MEMORIZATION........................................................................................... 5
5.1. H
OW TO SEE THE MIN TEMPERATURE ........................................................................................................................ 5
5.2. H
OW TO SEE THE MAX TEMPERATURE....................................................................................................................... 5
5.3. H
OW TO RESET THE MAX AND MIN TEMPERATURE RECORDED ................................................................................. 5
6 MAIN FUNCTIONS ...................................................................................................................................................... 6
6.1. T
O SET THE CURRENT TIME AND DAY (ONLY FOR DEVICES WITH RTC)................................................................. 6
6.2. H
OW TO SEE THE SETPOINT ......................................................................................................................................... 6
6.3. H
OW TO CHANGE THE SETPOINT.................................................................................................................................. 6
6.4. H
OW TO START A MANUAL DEFROST.......................................................................................................................... 6
6.5. H
OW TO CHANGE A PARAMETER VALUE..................................................................................................................... 6
6.6. T
HE HIDDEN MENU ...................................................................................................................................................... 6
6.6.1. How to Enter the Hidden Menu ............................................................................................................................ 6
6.6.2. How to Move a Parameter from the Hidden Menu and Vice Versa ..................................................................... 7
6.7. H
OW TO ASSIGN A MODBUS ADDRESS ..................................................................................................................... 7
6.8. H
OW TO LOCK THE KEYBOARD ................................................................................................................................... 7
6.9. T
O UNLOCK THE KEYBOARD ....................................................................................................................................... 7
6.10. T
HE CONTINUOUS CYCLE........................................................................................................................................... 7
6.11. T
HE ON/OFF FUNCTION ............................................................................................................................................ 7
7 PARAMETERS.............................................................................................................................................................. 8
8 DIGITAL INPUTS....................................................................................................................................................... 14
8.1. G
ENERIC ALARM (I2F=EAL) ..................................................................................................................................... 14