122
Preventive Maintenance
3ADW000488R0101 DCS880 Service manual e a
6 years preventive maintenance
Following additional actions have to take place:
−
Replace the cooling fans of units H5 and H6:
−
−
The manufacturer’s estimation for the operational time of the cooling fans is:
−
R2E250-RB 40,000 hours at 40°C.
The mayor problem is the failure of the bearings. The cooling fans are used in:
DCS880-S0b-1190-dd
H5
R2E250-RB
230 V
DCS880-S0b-0900-dd ...
DCS880-S0b-2000-dd
H6
Aging of the components result in:
−
Increased vibration due to the imbalance of the cooling fan (can last for several months).
−
Increased temperature due to the stopped cooling fan (drive trips with overtemperature).
−
Replace the cooling fans of units H1 … H4.
−
Exchange the cooling fan size H1 (one fan).
−
Exchange the cooling fan sizes H2 … H3 (two fans).
−
Exchange the cooling fan size H3 (four fans).
−
Exchange the cooling fan size H4.
The manufacturer’s estimation for the operational time of the classic cooling fans is:
−
3110UL:
70,000 hours at 25°.
−
AFB122:
100,000 hours at 25°.
−
W2E200:
45,000 hours at 60°C.
−
W2E250:
40,000 hours.
The mayor problem is the failure of the bearings. The cooling fans are used in:
DCS880-S0b-0045-dd ...
DCS880-S0b-00100-dd
H1
1 x 3110UL
24 V internal
DCS880-S0b-0135-dd ...
DCS880-S0b-0300-dd
H2
2 x AFB122
24 V internal
DCS880-S0b-0315-dd ...
DCS880-S0b-0450-dd
H3
2 x 3110UL
2 x AFB122
24 V internal
DCS880-S0b-0610-dd ...
DCS880-S0b-0820-dd
H4
1 x W2E200
230 V
1 x W2E200
115 V (plus code E171)
DCS880-S0b-0900-dd ...
DCS880-S0b-1000-dd
1 x W2E250
230 V
1 x W2E250
115 V (plus code E171)
Aging of the components result in:
−
Increased vibration due to the imbalance of the cooling fan (can last for several months).
−
Increased temperature due to the stopped cooling fan (drive trips with overtemperature).
−
Check the flat cables and their connections.
Содержание DCS880 series
Страница 1: ... DCS880 DCS880 Service manual ...
Страница 46: ...46 Exchange thyristors size H6 3ADW000488R0101 DCS880 Service manual e a Location of branch fuses frame H6 ...
Страница 58: ...58 Exchange thyristors size H7 3ADW000488R0101 DCS880 Service manual e a Location of branch fuses frame H7 ...
Страница 127: ...127 Appendix Spare Parts List 3ADW000488R0101 DCS880 Service manual e a Appendix Spare Parts List ...