Omron SYSDRIVE MX2 SERIES, User Manual

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6 Vector Control and Applied Functions
Multi-function Compact Inverter 3G3MX2-V1 User’s Manual (I585-E1)
6
-7 Sim
p
le Pos
ition
Co
ntro
l
6
6-
7-3 Simple
P
o
sition
Contro
l Opera
tion an
d Setting
s
The simple position control is a function only available for the 1st control. It does not work if you switch
to the 2nd control.
In addition, when the simple position control is set, the torque control is disabled. The terminal ATR
(Torque reference input permission) is disabled.
In the PM motor mode, the simple position control is not available (the parameter P012 is not dis-
played).
To enable the simple position control, set parameters as follows.
• Set the Simple Position Control Selection (P012) to 02 (Simple position control enabled).
• Set the Creep Speed Moving Amount (P014) and Creep Speed Setting (P015) according to the oper-
ation pattern.
Set the Creep Speed Moving Amount as a percentage of the amount of movement per motor rota-
tion.
• Set the Multi-function Output P1/P2 Selection (C021/C022), or Multi-function Relay Output (MA, MB)
Function Selection (C026), to 23 (POK: Position ready), then set the Positioning Completion Range
Setting (P017). This value must be set as
×
4 multiplication pulses (the number of pulses obtained by
dividing each phase-A pulse by 4).
If the current value reaches in the range of the target position ± P017, the POK signal will be output.
• To enable the position limit settings, set the Position Control Mode Selection (P075) to 00 (Limit).
Then, in the Position Limit Setting (Forward Side) (P072)/Position Limit Setting (Reverse Side)
(P073), set the upper/lower limit of the position control range. This value must be set as
×
1 multiplica-
tion pulses (equivalent the number of phase-A pulses).
If the current position moves out of the range specified in the Position Limit Setting (Forward
Side/Reverse Side), the inverter detects the E83.
(Position control range trip) and shuts off the out-
put.
• The Digital Operator of this inverter has a 4-digit LED display, therefore you can set only the upper 4
digits.
To set a value over 4 digits, use the computer tool CX-Drive.
• Set the actual control target position in the Multi-step Position Command 0 (P060).
This value must be set as
×
1 multiplication pulses (equivalent the number of phase-A pulses).
For how to enable positioning to up to eight points, refer to 6-7-6 Multi-step Position Control Settings
on page 6-45.
• When the simple position control is enabled, the DC injection braking function works even if the DC
Injection Braking Selection (A051) is set to 00 (Disabled).
Do not set the DC Injection Braking Selection (A051) to Enabled. Doing so causes the simple posi-
tion control to malfunction.
To obtain the required level of braking power without overload detection, set the DC Injection Braking
Power (A054).
Simple Position Control Settings
Parameter
No.
Function name Data Default data Unit
P012
Simple Position Control
Selection
00: Simple position control disabled
00
−
02: Simple position control enabled
P014
Creep Speed Moving
Amount
0.0 to 400.0 125.0 %
P015 Creep Speed Setting Starting Frequency to 10.00 5.00 Hz
P017
Positioning Completion
Range Setting 0. to 9999.
1000 (10000) (
×
4 multiplication)
50. pulse