Hitachi SJ Series, User Manual

Page: 252 / 786

12-9-35
Chapter 12 Inverter Function
12.9.17 Use encoder
• To set up the encoder when the revolution-speed
feedback of a motor is used.
• In SJ-P1, the control with sensor and the absolute
position control can be conducted by inputting the
feedback from the motor into the controller circuit
terminal table of the main body or into the feedback
option P1-FB.
Parameter
• When [CA-90] ≠ 00, Input terminals [A] and [B] of
the main body are switched to the terminals for
feedback control.
• When [CA-90] = 02, the control with sensor and the
absolute position control are possible with Input
terminals [A] and [B].
• When [CA-90] ≠ 02, the control with sensor and the
absolute position control are possible with
terminals [EAP], [EBP], [EAN], and [EBN] of the
feedback option P1-FB.
• To conduct the pulse train position control, terminals
[SAP], [SBP], [SAN], and [SBN] of the feedback
option P1-FB are used.
• When the feedback option P1-FB was once set in a
slot and was removed later, a trip occurs with a
feedback option connection error [E112].
• Trips are triggered by an encoder disconnection
error [E100] by setting switches on the feedback
option P1-FB. For more details, see the instruction
manual of P1-FB.
Item Parameter Data Description
Encoder constant set-up [CA-81] 0~65535(pls) Setting the encoder constant
Encoder phase sequence
selection
[CA-82]
00 Phase-A is leading.
01 Phase-B is leading.
Motor gear ratio's numerator [CA-83] 1~10000
Setting the numerator of the gear
ratio of a motor.
Motor gear ratio's denominator [CA-84] 1~10000
Setting the denominator of the gear
ratio of a motor.
Pulse train input (main body)
detection target selection
[CA-90]
00 PCNT function
01 Command
02 Control with speed feedback
03 Pulse count
Pulse train input (main body)
mode selection
[CA-91]
00
MD0: 90-degree phase difference
pulse train
01
MD1: Forward-backward rotation
c pulse train
02
MD2: Forward-rotation pulse train +
backward-rotation pulse train.
Encoder constant set-up (P1-FB) [ob-01] 0~65535(pls) Setting the encoder constant
Encoder phase sequence
selection (P1-FB)
[ob-02]
00 Phase-A is leading.
01 Phase-B is leading.
Motor gear ratio's numerator
(P1-FB)
[ob-03] 1~10000
Setting the numerator of the gear
ratio of a motor.
Motor gear ratio's denominator
(P1-FB)
[ob-04] 1~10000
Setting the denominator of the gear
ratio of a motor.
Pulse train input SA/SB (P1-FB)
detection target selection
[ob-10]
00 Command
01 Pulse train position command
Pulse train input SA/SB (P1-FB)
mode selection
[ob-11]
00
MD0: 90-degree phase difference
pulse train
01
MD1: Forward-backward rotation
c pulse train
02
MD2: Forward-rotation pulse train +
backward-rotation pulse train.
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