Do you have a question about the TCB-IFCB-4E2 and is the answer not in the manual?
Questions and answers
Tomaz
June 18, 2025
We are currently experiencing an issue with the integration of your TCB-IFCB-4E modules in our system.
At our company, we are trying to connect four air conditioning units, each with its own TCB-IFCB-4E interface module. Our goal is to connect the COM (TP07), Operation (TP08), and Alarm (TP10) signals from each module to a Pilz PSSu E F 4DI input module.
However, whenever we wire these connections in parallel, the fuse consistently blows. We have double-checked the wiring and module documentation, but we are unable to determine the root cause of the issue.
Could you please advise us on the correct method for connecting multiple TCB-IFCB-4E modules to a shared digital input module? Are there any known limitations or special considerations when wiring these modules in parallel?
Your assistance would be greatly appreciated.
Best regards,
Low voltage digital solid state soft starter (100 pages)
Summary of Contents for Toshiba TCB-IFCB-4E2
Page 1
INSTALLATION MANUAL REMOTE LOCATION ON/OFF CONTROL BOX MODEL : TCB-IFCB-4E2 Thank you for purchasing the accessory parts. Please read this INSTALLATION MANUAL carefully before using your accessory parts.
Page 2
Safety Precautions • Please read this section carefully before installation work to install the accessory parts in the prescribed manner. The precaution given here deal with serious safety issues. It is, therefore, of the utmost importance that they are observed in full. •...
Page 3
<Installation Manual> NAME :Remote location ON/OFF Control box Model Name : TCB-IFCB-4E2 Usage/Function/Characteristics Central priority mode and Last-push priority modes Start and Stop of the air conditioner is possible by the external signal, and also indication of operation/alarm to A select switch to select central priority mode (CEN- outside is possible.
Page 4
Accessories • Accessory No.1 connecting cables is already connected. Name Name Remarks Cable (For CN61 connector, with 6P connectors, L=1.5m) 1 pc. Connected to connector CN61 on P.C. board of indoor unit M4 tapping screw 4 pcs. For installation of this control box Wiring diagram Remote location for ON/OFF control box Electric parts box...
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Do you have a question about the TCB-IFCB-4E2 and is the answer not in the manual?
Questions and answers
We are currently experiencing an issue with the integration of your TCB-IFCB-4E modules in our system. At our company, we are trying to connect four air conditioning units, each with its own TCB-IFCB-4E interface module. Our goal is to connect the COM (TP07), Operation (TP08), and Alarm (TP10) signals from each module to a Pilz PSSu E F 4DI input module. However, whenever we wire these connections in parallel, the fuse consistently blows. We have double-checked the wiring and module documentation, but we are unable to determine the root cause of the issue. Could you please advise us on the correct method for connecting multiple TCB-IFCB-4E modules to a shared digital input module? Are there any known limitations or special considerations when wiring these modules in parallel? Your assistance would be greatly appreciated. Best regards,