Figure 4.15, U5-99, U9-02 – Yaskawa iQpump Micro User Manual
Page 112
R+
S+
R-
S-
Drive 3
R+
S+
R-
S-
Drive 2
R+
S +
R-
S-
Drive 1
Figure 4.15 Daisy Chain Three Drives
Setting the Drive Networking Parameters
1.
1. Set parameter H5-01, Serial Node Address, on each drive.
Note:
For optimal performance, use consecutive numbers starting from 1. Parameter setting H5-01 must be unique for each drive.
2.
Set parameter P9-25, Highest Node Address, on each drive.
Note:
For optimal performance, set to highest H5-01 value. This setting must be the same for all the drives on the network.
3.
Set P1-01 to 3 (MEMOBUS/Modbus Network) on all the drives.
4.
Cycle main power to all networked drives.
Note:
The H5-01 setting will not take effect until power is cycled to the drive and may cause communication errors and unexpected
behavior.
Verifying Drive Network Communications
Access monitor U9-02, Network Activity, and verify:
• No drives have a value of 0 <->
• All drives are receiving valid data indicated by a regular change in the monitor value.
• At least one drive has the unit
Table 4.9 Network Connectivity Information
Network State
Top Line on Home Screen
(o1-12 = 1)
U9-02 Network Activity
Drive is the Master and is
communicating with
another drive.
Pump Off Network
<- MONITOR - >
U5-99=
U1-02=
U1-91=
100.0
PSI
0.00Hz
62.8PSI
Network Activity
U9-02=
U1-02=
U1-91=
9453
0.00Hz
62.8PSI
- MONITR -
DRV RDY
Home
FWD
Drive is a node on the
network and is
communicating with a
Master.
Pump Off Network
<+> CONNECTED
<- MONITOR - >
U5-99=
U1-02=
U1-91=
100.0
PSI
0.00Hz
62.8PSI
Network Activity
U9-02=
U1-02=
U1-91=
324
<+>
0.00Hz
62.8PSI
- MONITR -
DRV RDY
Home
FWD
Drive is not able to
communicate to any other
drives.
Pump Off Network
<-> DISCONNECTED
<- MONITOR - >
U5-99=
U1-02=
U1-91=
100.0
PSI
0.00Hz
62.8PSI
Network Activity
U9-02=
U1-02=
U1-91=
0
<->
0.00Hz
62.8PSI
- MONITR -
DRV RDY
Home
FWD
If a drive displays U9-02 = 0 <->:
4.7 iQpump Presets and Functions
112
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual