Yaskawa F7 Drive Technical Manual Orientation - Manual (Page 11)

Date: 03/03/06, Rev: 06-03 Page 11 of 16 TM.F7SW.063
4.6 Faults
Fault Display Description Cause Countermeasures
ZDEV
Marker Pulse
Detection Error
The drive monitors the number of A and
B channel encoder pulses between each
marker pulse (Z or C channel). There
should be P1-02 (Encoder PPR) A and B
channel pulses between each marker
pulse. If the pulse count exceeds P1-02
x 2, the drive will trip and coast to a stop
on a ZDEV fault.
-Check the wiring of the
encoder, especially the Z pulse.
-Check for noise on the encoder
feedback signals.
5.0 Function Description
5.1 Orient Position Offset Selection Using Parameter P2-01
a. P2-01 = 0 (Offset = P1-03)
b. P2-01 = 1 (Offset = P1-03, P2-02, P2-03, or P2-04 by Sequential Orientation Command)
Sequential Offset by Successive Orientation Command
c. P2-01 = 2 (Offset = P1-03, P2-02, P2-03, or P2-04 by MFDI selection)
Multi-function Digital Input (H1-0X) Selection
Parameter Number
Step 85: Offset Selection 2 84: Offset Selection 1
P1-03: Marker Offset 0 Open Open
P2-02: Offset 1 1 Open Closed
P2-03: Offset 2 2 Closed Open
P2-04: Offset 3 3 Closed Closed
d. P2-01 = 3 (Offset = Serial Offset: Modbus register 000AH)
5.2 Selecting Motor Gear Ratio Parameters P2-05, P2-06, and P2-07
Multi-function Digital Input (H1-XX) Selection
Parameter Number
87: Motor Ratio Selection 2 86: Motor Ratio Selection 1
P2-05: Motor Gear Ratio 1 Open Open
P2-06: Motor Gear Ratio 2 Open Closed
P2-07: Motor Gear Ratio 3 Closed Open
Not Used Closed Closed
Orient Command
Sequential Step
Selected Offset P1-03
P2-02
P2-03
P2-04
P1-03
P2-02