Omron SYSDRIVE 3G3RV, User Manual

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n
Setting PG Pulse Monitor Output Dividing Ratio
This
function is enabled only when using PG speed control card 3G3FV-PPGB2. Set the dividing ratio for the
PG
pulse monitor output. The set value is expressed as n for the higher place digit, and m for the lower place 2
digits.
The dividing ratio is calculated as follows:
The
dividing ratio can be set within the following range: 1/32 ≤ F1-06 ≤ 1. For example, if the dividing ratio is
1/2
(set value 2), half of the number of pulses from the PG are monitor outputs.
n
Detecting PG Open Circuit
Set
F1-09 (PG0 detection time) to detect PG cable disconnection and select the stopping method when PG
cable
disconnection is detected.
PG
disconnection is detected when the speed feedback from the PG is 0 for the time set in F1-14 whenever the
frequency
reference is 1% or more of the maximum speed. PG0 is not detected during DC braking.
n
Detecting Motor Overspeed
An
error is detected when the motor speed exceeds the limit. An overspeed (OS) is detected when a PG Input
frequency
that exceeds the set value in F1-08 continues for longer than the time set in F1-09. After detecting
an
overspeed (OS), the Inverter stops according to the setting in F1-03.
n
Detecting Speed Difference between the Motor and Speed Reference
An
error is detected when the speed deviation (i.e., the difference between the designated speed and the actual
motor
speed) is too great. Speed deviation (DEV) is detected after a speed agreement is detected and when the
speed
reference and actual workpiece speed are within the setting of L4-02, if a speed deviation great than the
set
value in F1-10 continues for longer than the time set in F1-11. After a speed deviation is detected, the
Inverter
stops according to the setting in F1-04.
Dividing
ratio = (1 + n)/m (Setting range) n: 0 or 1, m: 1 to 32
F1-06
=
n m