Omron MX2 Series - Page 307

6 Vector Control and Applied Functions
6 - 39
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
⚫ Encoder disconnection detection
When the inverter outputs the frequency set in the Creep Speed Setting (P015) or higher, if the
speed feedback value does not reach the Starting Frequency (b082) within the Encoder Disconnec-
tion Detection Time (P077), the inverter detects the E80. (Encoder disconnection error) and shuts
off the output.
If the inverter falsely detects this error, for example, when it operates with a heavy load and is slow
to start, some adjustment is required. Use the Creep Speed Setting (P015) and Encoder Disconnec-
tion Detection Time (P077) to set speed and time values that allow the inverter to start stably in your
application.
Parameter
No.
Function name
Data
Default data
Unit
C102
Reset Selection
03: Trip reset only
02
−
P072
Position Limit Setting
(Forward Side)
0 to 268435455
(Displays upper 5 digits)
(1 multiplication)
*1
268435455
pulse
P073
Position Limit Setting
(Reverse Side)
−268435455 to 0
(Displays upper 5 digits including “−”)
(1 multiplication)
*1
−268435455
pulse
P026
Overspeed Error Detec-
tion Level
0.0 to 150.0
*2
115.0
%
P027
Speed Deviation Exces-
sive Level
0.00 to 120.00
10.00
Hz
P015
Creep Speed Setting
Starting Frequency to 10.00 (100.00)
*3
5.00
Hz
P077
Encoder Disconnection
Detection Time
0.0: Disconnection detection disabled
0.1 to 10.0
1.0
s
C021, C022
Multi-function Output 11,
12 Selection
22: DSE (Excessive speed deviation)
−
−
C026
Multi-function Relay Out-
put (AL1, AL2) Function
Selection
05
−
*1. The digit shift display mode can be used.
*2. Set this as a percentage of the 1st Control Method (A004).
*3. In high-frequency mode.
When the Pulse Train Input EA Selection (P003) is set to 01 (Feedback pulse), the monitor functions
listed below are always enabled.
Use these monitor functions for checking the operation of the simple position control function, monitor-
ing device position, or other purposes.
Parameter
No.
Function name
Data
Default
data
Unit
d008
Real Frequency Monitor
*1
−590.00 to 590.00
−
Hz
d029
Position Command Monitor
*2
−268435455 to 268435455 (1 multiplication)
(Displays upper 4 digits including “−”)
−
pulse
d030
Current Position Monitor
*3
−268435455 to 268435455 (1 multiplication)
(Displays upper 4 digits including “−”)
−
pulse
*1. For details, refer to 7-1-8 Real Frequency Monitor [d008] on page 7-7.
*2. For details, refer to 7-1-22 Position Command Monitor [d029] on page 7-12.
*3. For details, refer to 7-1-23 Current Position Monitor [d030] on page 7-12.
6
6-7 Simple Position Control
6-7-3 Simple Position Control Operation and Settings
Monitor Functions under Simple Position Control