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840D fan alarm 2120

8/25/2010 1:49 PM	Rate (0)
aprl0755 Posts: 7 Rating: (0)	We have an 840D 2120 fan alarm the small fan with the backup battery is not running thw two other fans are. Have replaced fan and x351 cable three times. replaced ncu and ncu box. what powers the fan? The infeed module.
aprl0755 Posts: 7 Rating: (0)
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8/25/2010 5:11 PM	Rate (0)
Gebhardt Karl Platinum Expert Joined: 7/16/2006 Last visit: 1/2/2024 Posts: 1502 Rating: (176)	Hi aprl0755 We have an 840D 2120 fan alarm the small fan with the backup battery is not running thw two other fans are. Have replaced fan and x351 cable three times. replaced ncu and ncu box. what powers the fan? The infeed module. What fan is not working ? Fan for Batterie/Fan - Bow have 24Volt . So far i know, the power is from E/R-Modul. (UEB-Modul) In eglisch is the Infeed-Modul. You can check all Voltage from Conector on this Unit. Handbuck Simodrive Side 6-151 Check the power on the conectors 7,45,44,10,15 I think the Power for the Fan is 15-7 Please check this.
	Karl
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