GE Industrial Solutions AF-650 GP DeviceNet - Manual (Page 26)

4.5.3 Bus Reference Value under Instances 100/150 and 101/151
The frequency reference value is transmitted to the frequency converter in
the form of a 16-bit word. The value is transmitted as a whole number (-32767
to 32767). Negative figures are formatted by means of 2’s complement.
Master → slave 16 bit
CTW Speed ref. RPM
The bus reference has the following format:
100% = 4000 Hex
par. F-50 Reference Range = "0" ["ref
MIN
-> ref
MAX
"] 0 -> 16384 (4000 Hex) ~ 0 -> 100%
par. F-50 Reference Range = "1" [- ref
MAX
-> + ref
MAX
] -16384 (C000 Hex) -> +16384 (4000 Hex) ~ -100% -> +100%
4.5.4 Actual Output Frequency under Instances 100/150 and 101/151
The value of the actual output frequency of the frequency converter is trans-
mitted in the form of a 16-bit word. The value is transmitted as a whole
number (-32767 -> 32767) Negative figures are formed by means of 2’s com-
plement.
Slave → master 16 bit
STW Actual ref. RPM
The actual output frequency has the following format:
-32767 ->+32767.
-16384 (C000 Hex) corresponds to -100%, and 16384 (4000 Hex) corresponds to 100%.
AF-600FP /650 GP DeviceNet Operating Instructions
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