Toshiba Asd Master; Overview - ICC XLTR-1000 Instruction Manual

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9.11 Toshiba ASD Master

9.11.1 Overview

The gateway supports the Toshiba ASD Master protocol on both of its RS-485
ports. This protocol allows direct connection to Toshiba adjustable-speed drives
with RS-485 ports that support the Toshiba protocol, such as the G7/Q7/H7 and
AS1/FS1/G9/H9/Q9 families. Some notes of interest are:
• Supported function codes are indicated in Table 13.
Table 13: Supported Toshiba ASD Master Functions
Function
Code
R
G
W
P
• Requests are fully configurable through service objects.
• Up to 125 parameters can be requested per service object.
• Note that Toshiba 7-series drives (G7/Q7/H7 etc.) configured for 2-wire
mode (F821=0) shipped prior to early 2006 may exhibit an issue that can
cause their RS-485 ports to stop communicating after a certain amount of
time. Please contact Toshiba technical support to confirm your configuration
prior to using 2-wire RS-485 mode on these drives.
• If a 2-wire RS-485 drive network is desired, then the drive(s) must be
properly configured for 2-wire RS-485. Note that this may involve hardware
configuration in addition to parameter changes. For example, G7/Q7/H7-
series drives have duplex selection jumpers located on the drive's control
board near the
communication ports. For
these drives, both jumpers
must be placed in the "HALF"
position for successful 2-wire
operation. Refer to Figure 17
for an example detailed view
of correctly-positioned duplex
selection jumpers.
• The Toshiba RS-485 terminal
block connections for
G7/Q7/H7/W7 drives are
shown in Figure 18 for
reference only. Because
there are several possible
Function
RAM read for 4-wire RS-485 networks
RAM read for 2-wire RS-485 networks
RAM & EEPROM write
RAM-only write
Figure 17: RS-485 Terminal Block (CN3)
and Duplex Selection Jumpers
142