5-161
5-12 Simple Position Control Function
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-A@@@@)
5
Functions
*2. The run command, command rotation direction, and detected rotation direction are as follows:
Run command (FW/RV terminal): Tells the Inverter to start operation.
Command rotation direction: The direction in which the Inverter is intended to rotate the
motor. For positioning control, this is determined by the sign
of the position deviation.
Detected rotation direction: The current rotation direction as detected by the Inverter.
P004 specifies the number of encoder phases and the method used to detect the motor rotation direction.
The methods for determining the command rotation direction and detected rotation direction are given in the
following table. For a dual-phase pulse, the maximum input pulse frequencies are 32 kHz for phase A and
1.8 kHz for phase B. At less than 1.8 kHz, which is valid for both phases A and B, the motor rotation phase
and direction detection (number of pulses: x4) is performed using a 90
°
encoder phase difference. For 1.8
kHz or higher, where phase B is not valid, the phase-B signal is ignored and only phase A is used to detect
the motor rotation phase (number of pulses: x1). Motor rotation direction, which cannot be detected from the
encoder, is detected with a different method, as shown in the following table.
P027
Speed Deviation Error
Detection Level
0.00 to 120.0
If this parameter is not set to 0 and
DSE (excessive speed deviation) is
assigned to the intelligent output
terminal, the DSE signal will turn ON
if the absolute value of the output
frequency minus the speed FB is
equal to or greater than the setting of
P027. The Inverter will not be tripped.
This does not depend on whether
simple position control or V/f control
with FB is either ON or OFF.
10.00 Hz
P072
Position Range Setting
(forward side)
0 to +268,435,455 26843545
5
−
P073
Position Range Setting
(reverse side)
−268,435,455 to 0 −
26843545
5
−
P075 Positioning Mode Selection
00: Limit
00 −
01: Not limited
*3
P077
Encoder Disconnection
Detection Time
0.0 to 10.0
1.0 s
d029 Position Command Monitor −268,435,455 to +268,435,455 −−
d030 Current Position Monitor
*5
−268,435,455 to +268,435,455 −−
C102 Reset Selection
03: Trip reset only
Internal data (current values) are not
initialized upon reset.
00 −
C001 to
C007
Multi-function Input
Selection
47: PCLR (Position deviation clear)
−−
85: EB (Rotation direction detection)
*1
C021 to
C022
Multi-function Output
Terminal Selection
22: DSE (Excessive speed deviation)
−−
C026
Multi-function Relay Output
Function Selection
23: POK (Position ready)
*1.To use the EB terminal (P004 = 01 to 03), allocate "85: EB" to multi-function input terminal S7/EB.
The selection of an NO or NC contact will be disabled. The EB terminal is OFF for forward and ON for
reverse.
Parameter
No.
Function name Data
Default
setting
Unit
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