Toshiba Multiprotocol Ethernet Interface for Toshiba G9/VFAS1 Adjustable Speed Drives ASD-G9ETH User Manual

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Output Instances 20 and 21 Detail

Instance

Byte

Bit

Fault

Reset

Run

Fwd

Speed Reference (Low Byte)

Speed Reference (High Byte)

NetRef

NetCtrl

Fault

Reset

Run

Rev

Run

Fwd

Speed Reference (Low Byte)

Speed Reference (High Byte)

Mapping Detail

Run Fwd: forward rotation command (0=forward rotation off, 1=forward rotation on).
Maps to inverter register 1007, bits 9 and 10. Run Fwd = 1 translates to inverter
register 1007 bit 9 (direction) = 0 and bit 10 (run/stop) = 1. Note that if both the “Run
Fwd” and “Run Rev” bits are on, then inverter register 1007 will not be changed from
its previous value.

Run Rev: reverse rotation command (0=reverse rotation off, 1=reverse rotation on).
Maps to inverter register 1007, bits 9 and 10. Run Rev = 1 translates to inverter
register 1007 bit 9 (direction) = 1 and bit 10 (run/stop) = 1. Note that if both the “Run
Fwd” and “Run Rev” bits are on, then inverter register 1007 will not be changed from
its previous value.

Fault Reset: Inverter reset command (0=no action, 0

→1 rising edge=reset). Maps

to inverter register 1007, bit 13 (fault reset).

NetCtrl: Run/stop control source selection (0=local control, 1=network control).
Maps to inverter register 1007, bit 15 (command priority).

NetRef: Speed reference source selection (0=local control, 1=network control).
Maps to inverter register 1007, bit 14 (frequency priority).

Speed Reference: Inverter speed reference in RPM. Maps to inverter register 1008
(frequency command). Because the inverter always requires a frequency command
value in units of Hz, the interface card applies an RPM-to-Hz conversion equation.
The general RPM-to-Hz conversion equation is [RPM x number of motor poles /
120]. However, for simplicity the interface card always assumes that a 4-pole motor
is in use, thereby reducing the applied conversion equation to [frequency command
value = RPM / 30].