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Operating Manual
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Air-conditioner Control System
Centralized Controller
Model: GB-24A
Before using the controller, please read this Instruction Book carefully to ensure correct operation.
Retain this manual for future reference.
1. Safety Precautions ...................................................1
2. Introduction ...............................................................3
3. Functions ..................................................................4
4. External input/output functions ...................................8
Instruction Book
Contents
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Summary of Contents for Mitsubishi Electric GB-24A
- Page 1 –––– Air-conditioner Control System Centralized Controller Model: GB-24A Instruction Book Contents 1. Safety Precautions ...........1 2. Introduction ...............3 3. Functions ..............4 4. External input/output functions ........8 Before using the controller, please read this Instruction Book carefully to ensure correct operation.
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Page 2: Safety Precautions
This manual describes how to operate the centralized controller. Before using the controller, read the 1 Safety Precautions section carefully to ensure proper installation. Safety Precautions Safety precautions are provided for your protection and to prevent damage to the controller. The safety precautions apply to all operators and service personnel. - Page 3 Use a security device such as a VPN router when connecting the GB-24A to the Internet to prevent unauthorized access. To reduce the risk of electric shock, install and...
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Page 4: Introduction
Refer to Web Browser Operation Manual for monitoring and operating the air conditioners. The format in which the Web page address for each GB-24A is expressed on the Web browser, as well as the default user name and password are shown below. -
Page 5: Functions
Functions Notes ● Refer to the WEB Browser Operation Manual for operating the GB-24A. ● Use the initial setting web to make initial settings via LAN. 3-1. Specifications Table 3-1. Specifications Item Specifications Interface M-NET: 30V DC/24V DC;0.13/0.15A LAN: Ethernet 10Base-T... -
Page 6: Function List
3-2. Function list GB-24A requires a license registration. By registering the license, group or block operation via the Web browser will be permitted. License registration that permits various functions can be completed on the license registration page. Table 3-2. Web monitoring functions... - Page 7 3-3. Setting Functions Perform initial settings with the Initial Setting Web. Table 3-3. Initial-setting functions Initial Setting Item GB-24A Remarks M-NET address The default value is 0. √ setting IP address setting √ Simple settings have priority √ (Simple setting) over other settings.
- Page 8 Notes ● When 15 or fewer GB-24A units are used in the air-conditioning network for, set the IP address via SW2 on the unit. ● If the set IP address of GB-24A is forgotten, check the IP address that is registered on the monitoring PC (WEB).
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Page 9: External Input/Output Functions
External input/output functions *External signal input requires the external I/O adapter (Model: PAC-YG10HA), sold separately. 4-1. External input function (1) The function of external input • Emergency stop/normal operation, ON/OFF, local remote control prohibit/permit can be controlled for conditioners on a system with a non-voltage contact signal input from an external input source. (the dip switches) •... - Page 10 (A) For level signal 1. When the emergency stop/normal signal is selected, the status will change from normal to emergency stop when the external input signal contact changes from OFF to ON, and will change from emergency stop to normal when the contact changes from ON to OFF. Emergency stop signal will bring the air conditioners to stop, and canceling the emergency stop will not automatically reset these units.