Limiting Motor Rotation Direction - Omron SYSDRIVE 3G3RV Series User Manual

nOperation during Motor Overheating
Set the operation if the motor overheats in parameters L1-03 and L1-04. Set the motor temperature input filter
time parameter in L1-05. If the motor overheats, the OH3 and OH4 error codes will be displayed on the Digi-
tal Operator.
Error Codes If the Motor Overheats
Error Code
OH3 Inverter stops or continues to operate, according to the setting in L1-03.
OH4 Inverter stops according to the setting in L1-04.
By setting H3-09 (Multi-function Analog Input Terminal A2 Function Selection) to E (Motor temperature
input), you can detect alarm OH3 or OH4 using the PTC temperature-resistance characteristics, and protect the
motor. The terminal connections are shown in the following diagram.
Multi-function
contact input
Branch resistance
18 kΩ
PTC thermistor
Fig 6.41 Mutual Connections During Motor Overheating Protection
K K K K

Limiting Motor Rotation Direction

If you set motor reverse rotation prohibited, a reverse run command will not be accepted even if it is input.
Use this setting for applications in which reverse motor rotation can cause problems (e.g., fans, pumps, etc.)
nRelated Parameters
Name
Param-
eter
Num-
LCD Display
ber
Prohibition of reverse
operation
b1-04
Reverse Oper
* Can be set only for (-E)) model. Disabled for V/f with PG.
Inverter
Description
0: Reverse enabled
1: Reverse disabled
2: Switch phase order (reverse enabled)*
Details
Multi-function
contact output
Fault contact Note:The portion in dotted lines
output can also be as follows:
Multi-function
PHC output
Change
Setting Factory during
Range Setting Opera-
0 or 1
0
(0 to 2)*
Machine Protection
Multi-
M3
function
M4
contact
M5
outputs
M6
Control Methods
Open
V/f
Loop
V/f with
Vec-
tion
PG
tor
No A A A
6-
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