Limiting Motor Rotation Direction - YASKAWA CIMR-ACA4011 Instruction Manual

Operation during Motor Overheat
Set the operation if the motor overheats in parameters L1-03 and L1-04. Set the motor temperature input filter
time constant in L1-05. If the motor overheats, the OH3 and OH4 error codes will be displayed on the digital
operator.
Error Codes If the Motor Overheats
Error Code
OH3 MxC stops or continues to operate, according to the setting in L1-03.
OH4 MxC stops according to the setting in L1-04.
By setting H3-09 (Terminal A2 Function Selection) or H3-05 (Terminal A3 Function Selection) to E (Motor
temperature input), alarm OH3 or OH4 will occur 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

Limiting Motor Rotation Direction

If the motor reverse rotation is 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.).
Related Parameters
Name
Parameter
Number
Display
Reverse Operation
Selection
b1-04
Reverse Oper
MxC
+ V
(+15 V, 20 mA)
A3
(0-10 V)
AC
Description
Determines the forward rotation of the motor,
and if reverse operation is disabled.
0: Reverse enabled.
1: Reverse disabled.
Details
M1
Multi-function
contact output
M2
MA
Fault contact output
MB
MC
P1
Multi-function
P2
PHC output
PC
Change
Setting
Default during
Range
Run
0 or 1 0 No
Machine Protection
Control Methods
Open
Flux
V/f Loop
Vector
Vector
A A A
55
6-