CSD Series Variable Frequency AC Drive
MOTORTRONICS
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Fn30 = Voltage of Power Supply
Fn30 must be programmed to the supply voltage. Fn30 provides the
correct voltage to the motor for the various V/f patterns. It also determines
the braking transistor setpoint.
Restart From Momentary Power Loss:
Fn31 and Fn32 allow the drive to ride through a momentary power loss
of up to two seconds without tripping on undervoltage. When the power
comes back, if it is within the time set by Fn31, the drive tracks the
motor at its current operating speed and then reaccelerates to its
operational speed. There is no limit to the number of times this feature
can be activated as long as the power loss is less than the value in
Fn31.
Fn31 = Momentary power loss ride through time -
Factory Setting = 0.5 sec; Range = 0 - 2 sec.
Fn32 = XXX0: Disable
XXX1: Enable
If the power loss time is greater than Fn31 and the application requires
that the drive still restart upon reapplication of power, program Fn34
and Fn35 to allow automatic reset of a fault and restart of the drive.
Fn33 = Analog Input Signal Scan Times -
Factory Setting = 100 2ms; Range = 0 - 100 2ms
The value of terminal 13 (A/D) input signal is scanned at a rate of 2ms.
The drive calculates the average value of this signal based on (2msx
Fn33). The drive will then respond to this calculated speed, filtering out
noise on the command signal line.
Auto Restart
Fn34 and Fn35 allow the drive to automatically reset a fault condition,
restart the drive and use speed search to return the motor to speed
after the fault condition clears.
Fn34 = Auto Restart Interval - Factory Setting = 0 sec;
Range = 0 - 800 sec.
Fn35 = Number of Auto Restart Attempts - Factory Setting = 0;
Range = 0 - 10 times:
Programming Fn35 = 0 disables this feature.
To enable this feature, program Fn35 to the maximum number of times
the drive will attempt to reset the fault. Program Fn34 to the delay
period between the fault condition notice and the subsequent fault reset
by the drive. Auto restart is only effective if the drive is in the run mode.
The number of auto restart attempts will be reset after either 10 minutes
has elapsed without a fault condition or the reset key is depressed on
the keypad or via TM2.
Note: Fn97 determines when the fault contact (TM2 pins 1 and 2) will
energize on a fault if the auto restart circuit is trying to restart the
motor. If Fn97 =XXX0, the fault terminal will not function while auto
restart is working (except for an OL fault). If Fn 97 = XXX1 the fault
terminal will function even while auto restart is working.
Fn36 = Display Mode Control - Factory Setting = 4 Poles;
Range = 2-8 motor poles
Fn36 tells the drive the number of poles in the motor. The drive uses
this number to calculate the RPM of the motor at a given frequency.
This number can be displayed on the keypad by programming Fn51 =
1. Program into Fn36 the number of motor poles.
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