4 Operation
4.4 Commissioning with local controls
116 DC1 Variable Frequency Drive 04/16 MN04020003Z-EN www.eaton.com
4.4 Commissioning with local controls
DC1-…-A6SN variable frequency drives with local controls are configured and
wired at the factory. They can be started directly using the local controls
when the rated motor output for the mains voltage is connected (see the
connecting example below).
Simplified connecting example
When the specified supply voltage is applied at the mains connection
terminals (L1/L, L2/N, L3) and the main switch (PWR ) on the mains side is
switched on, the switched-mode power supply unit (SMPS) in the DC link
will be used to generate the control voltage and the 7-segment LED display
will light up (StoP). At this point, the variable frequency drive will be ready for
operation (correct operating status) and in Stop mode. The start enable signal
can then be issued by selecting a rotating field direction :
• FWD = Clockwise rotating field (Forward Run)
• REV = Counterclockwise rotating field (Reverse Run)
At this point, the output frequency (0 - 50 Hz), and the speed of the
connected three-phase motor (0 - n
Motor
) as a result, can be adjusted by using
the internal setpoint potentiometer . Output frequency changes will be
delayed based on the specified acceleration and deceleration times.
When
using the device’s default settings, these times will be set to 5 seconds.
￫
Make sure that the switches und are open before
switching on the mains voltage.
DC1-…-A6SN
Terminal Designation
PWR Power
L1/L Single-phase mains
connection
(DC1-1D…, DC1-12…)
Three-phase mains
connection
(DC1-32…, DC1-34…)
L2/N
L3 –
Ground connection
1 Control voltage +24 V (output, maximum 100 mA)
2 FWD, Start release clockwise rotating field
3 REV, Start release left rotating field
U Connection for three-phase ac motor
(three-phase motor)
V
CO
5 Setpoint value voltage +10 V (Output, maximum 10 mA)
6 Frequency reference value f-Set (Input 0 – +10 V)
7 Reference potential (0 V)
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