Hitachi WJ C1 Series User Manual

Chapter 9 Inverter Functions
9-14-9
■ Low-speed homing mode (P068=00)
 The following figure illustrates the operation when "Homing mode selection [P068]" is "Low-
speed homing (00)".
(1) When the "Start signal of Homing function [ORG] (70)" input is turned on, it accelerates in the
direction of "Homing direction selection [P069]". At this time, the simple position control starts, so
do not enter any RUN command.
(2) It operates at "Low-speed homing speed [P070]".
(3) At the point when "Limit signal of homing function [ORL] (69)" is turned on, "Current position
monitor [d030]" is cleared to zero and the DC braking is activated at the same time. Turning [ORG]
off releases the DC braking.
■ High-speed homing mode (P068=01)
 The following figure illustrates the operation when "Homing mode selection [P068]" is "High-
speed homing (01)".
(1) When the "Start signal of homing function [ORG] (70)" input is turned on, it accelerates in the
direction of "Homing direction selection [P069]". At this time, the simple position control starts, so
do not enter any RUN command.
(2) It operates at "High-speed homing speed [P071]".
(3) When "Limit signal of homing function [ORL] (69)" is turned on, the deceleration starts.
(4) It accelerates in the opposite direction of "Homing direction selection [P069]" and operates at
"Low-speed homing speed [P070]".
(5) At the point when "Limit signal of Homing function [ORL] (69)" is turned on, "Current position
monitor [d030]" is cleared to zero and the DC braking is activated at the same time. Turning [ORG]
off releases the DC braking.
[ORG] input
[ORL] input
ON
ON
(1)
(2)
(3)
Low-speed returning speed
[P070]
Output
frequency
Position
Origin
[ORG] input
[ORL] input
ON
ON
(1)
(2)
(3)
High-speed homing speed [P071]
Output
frequency
Position
Origin
(5)
Low-speed homing speed [P070]
(4)

Hitachi WJ C1 Series Specifications

General

Brand	Hitachi
Model	WJ C1 Series
Category	Inverter
Language	English