8 - 147
8 Applied Settings
High-function General-purpose Inverter RX2 Series User’s Manual
8-8 Frequency Arrival Signal (FA1 to FA5)
8
8-8-4 0-Hz Detection Signal (ZS)
Assign the output terminal function 040 [ZS] 0-Hz detection signal to one of [CC-01] to [CC-07] that cor-
responds to the output terminal and output the signal.
This function is to output a signal when the output frequency of the inverter becomes lower than the
level specified with the 0-Hz detection value level [CE-33].
When the feedback circuit board is used, the actual frequency of the motor is evaluated for outputting
the signal.
ZS Signal is switched only by existence or non-existence of speed detection at any control modes in
the following way:
Without speed detection: Output frequency monitor (dA-01)
With speed detection: Frequency detection monitor Absolute values of (dA-08)
Precautions for Correct Use
While the operation is stopped, the [ZS] signal becomes ON state because the frequency is 0
Hz.
Parameter
8-8-4 0-Hz Detection Signal (ZS)
Item Parameter Data Description
Default
data
Output terminal func-
tion selection
[CC-01] to
[CC-05]
040
[ZS]: The 0-Hz signal is output to the output
terminal assigned.
-
Relay output terminal
function selection
[CC-06]
Relay output terminal
function selection
[CC-07]
Zero speed detection
level
[CE-33]
0.00 to
100.00(Hz)
The frequency setting value to estimate
0-Hz state when [ZS] is output.
0.50
Output
Frequency
Operation
command [FW]