MA7200 PLUS Operating Manual
TECO – Westinghouse Motor Company Cn-31
Cont
. - Cn-33 Parameter Details
Table 9.2.2.2 Frequency Detection Function
Function
Frequency Detection Operation
Description
Frequency
Agree
OFF
ON
Frequency
Command
Output
Frequency
FWD
REV
Cn-31
Cn-31
Frequency Agree
Output
ON
When the Output freq. is within the Freq.
c/- Freq. detection width (Cn-31),
the Frequency agree output is “ON”.
Set Sn-30 - Sn-32 to 02 (Frequency agree).
Setting
Frequency
Agree
After acceleration, when the Output freq.
reaches the Freq. agree detection level,
(Cn-29) and is within the Freq. agree detection
width (Cn-31), the Agreed freq. output is
“ON”.
Set Sn-30 - Sn-32 to 03 (Setting freq. agree.)
Output
Frequency
Detection 1
OFF
ON
Output
Frequency
FWD
REV
Cn-31
Output Frequency
Detection Signal 1
Cn-29
Cn-31
Cn-30
Cn-31
Cn-29
Cn-31
Cn-30
ON
ON
During acceleration, when the Output freq. is less
than Freq. agree detection level (Cn-29), Output
freq. detection 1 is “ON”.
During deceleration, when the Output freq. is
less than Freq. agree detection level (Cn-30),
Output freq. detection 1 is “ON”.
Set Sn-30 - Sn-32 to 04 (Output freq. detection 1)
Output
Frequency
Detection 2
OFF
ON
Output
Frequency
FWD
REV
Cn-31
Output Frequency
Detection Signal 2
Cn-29
Cn-31
Cn-30
Cn-31
Cn-29
Cn-31
Cn-30
ON
During acceleration, when the Output freq. is
greater than Freq. agree detection level (Cn-29),
Output freq. detection 2 is “ON”.
During deceleration, when the Output freq. is
greater than Freq. agree detection level(Cn-30),
Output freq. detection 2 is “ON”.
Set Sn-30 - Sn-32 to 05 (Output freq. detection 2)
Cn-32
Excess Load Detection Level (0 – 200%)
Cn-33
Excess Load Detection Time (0.0 – 25.5s)
The excess load Detection Function detects excessive mechanical load from an increase in output current.
An excess load condition is detected when the output current exceeds the Excess Load Detection Level (Cn-32)
for longer than the Excess Load Detection Time (Cn-33). (See Fig.9.2.2.8)
The Multi-Function Output Terminals RA-RB-RC or R1A-R1B-R1C, DO1, DO2 or R2A-R2C can be set to indicate
that an excess load condition has been detected.
Cont.