3-42
Installing the Drive
DC590+ Series DC Digital Drive
Heatsink Cooling Fan Connections
When fitted, these fans are connected on the power board to FAN LIVE (F27), FAN NEUTRAL (F24) and FAN COMMON (F23) as described below:
•
A single fan must be matched to the auxiliary supply and connected to F27 and F24.
•
Two fans using a 110/115V auxiliary supply must be connected in parallel to F27 and F24.
•
Two fans using a 220/240V auxiliary supply must be connected in series to F27 and F24 using F23 as the centre point.
Contactor Supply
The controller requires an ac or dc power contactor in series with the main power path to ensure correct power-up sequencing. This contactor is
directly initiated by the Microcontroller via an isolating relay which drives the contactor coil with the same voltage as that of the auxiliary supply.
This is achieved by the brown wire connection from COIL LIVE (F28) to RELAY (F25) and the blue wire connection from COIL NEUTRAL (F21) to
CONTACTOR RETURN (F26).
However, if an alternative supply for the contactor coil is required move the brown wire from F25 to F22 , and move the blue wire from F21 to F25.
The external coil supply can now be switched using a volt-free contact between terminals D5 and D6.
F25
F23
F24
F21
FS1
D5
D6
D7
D8
F26
F22
F27
F28
F25
F23
F24
F21
FS1
D5
D6
D7
D8
F26
F22 F27
F28
Содержание 590+ series
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Страница 32: ...2 12 Product Overview DC590 Series DC Digital Drive...
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