Trane Mobrus RTU TR1 Series, Инструкция по эксплуатации

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The Modbus RTU interface to the TR1 Series
VFD requires drive parameter values selected
as shown. See the
TR1 Series VFD Installation
and Operation Manual for details on selecting
and changing parameter values, if necessary.
Drive
Parameter
Settings for
Modbus RTU
Communica-
tion
• Parameter 500, Protocol : Modbus RTU
• Parameter 501, Address : 001 - 247
• Parameter 502, Baud Rate : 300 - 9600
baud. (Factory default is 9600 baud.)
• Parameter 570, Modbus Parity/Frame :
select from the following, based on
application.
Even Parity/1 Stop
Odd Parity/1 Stop
No Parilty/1 Stop (factory default)
• Parameter 571, Modbus Communication
Timeout : 10 - 2000 ms. (Factory default
setting is 100 ms.)
Network
Connection
EIA-485 Connector
RTxD' (-)
RTxD (+)
COM
69
68
61
Pin 1
Connect the Modbus RTU control wiring to
drive terminals (+)68 and (-)69 on control card
as illustrated.
Use 18 - 24 AWG (1.5 mm) shielded, twisted
pair control wiring. Tighten to 4.5 in-lbs (0.5
Nm).
Shielded wiring must be used. Ground shield
to drive terminal 61, drive casing, or as
appropriate for the network application.
DIP switches 2 and 3, located on the main
control board of the drive directly above the
EIA-485 connector, can be used to terminate
drives on the Modbus network (see figure). In
addition to serial communication, switch 4 is
used to isolate a low voltage, external DC
power supply. The factory default switch
positions are ON (see table).
Drive DIP
Switch
Settings for
Network
Connection
Drive DIP Switches
SWITCH SETTING
Switch 1 No function
Switches 2 & 3 Used for terminating an EIA-485 interface. When
the drive is the first, last, or only device on a
network, switches 2 and 3 must be ON.
When the drive is in any other location on the
network, switches 2 and 3 must be OFF.
Switch 4 Separates the common potential of the internal 24
VDC supply from the common potential of external
24 VDC supply. When switch 4 is in the OFF
position, the external 24 VDC supply is isolated
from the drive. See the drive operation manual for
more information on switch 4.
Drive DIP Switche Settings