Eaton PowerXL DC1 20 Series Installation Manual page 129

4.3 Commissioning with control signal terminals (default settings)
▶ You can now set the output frequency (0 - 50 Hz) and, as a result, the
speed of the connected three-phase motor (0 - n
potentiometer via terminal 6 (0 - +10 V proportional voltage signal).
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.
The acceleration and deceleration ramps specify the time change for the
output frequency: from 0 to f
Figure 73 shows an example illustrating the time response when a RUN
enable signal (FWD or REV) is switched on while the maximum setpoint
voltage (+10 V) is being applied at control signal terminal 6. The speed of the
motor follows the output frequency, depending on the load torque and
moment of inertia (slip), from zero to n
The acceleration time is set in parameter P-03.
If the enable signal (FWD or REV) is switched off during operation, the
inverter will be disabled immediately (STOP) and the output frequency will be
set to zero. This will cause the motor to coast to a stop – see ① below.
FWD
REV
+24 V
RUN
f
P-07 = 50 Hz
f ~ n
max max
0
P-03 = 5 s
Figure 73:Start-Stop command with maximum reference voltage, acceleration ramp 5 s
DC1...20... and DC1...OE1 Variable Frequency Drives 02/20 MN040059EN www.eaton.com
(WE = 50 Hz) or from f
max
.
max
STOP
①
4 Operational
), by using the
Motor
back to 0.
max
t
t
125