Danfoss VLT DeviceNet MCA 104, Programming Manual

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CTW REF
CTW REF
PCD 2
write
PCD 3
write
STW MAV
STW MAV
PCD 2
read
PCD 3
read
Instance
100
101
150
151
Originator (PLC) --> Target (Drive)
Fixed contents User defined contents
Instance
STW MAV
70
STW MAV
71
CTW REF
20
CTW REF
21
Byte #
Byte #
Word #
Word #
Target (Drive) --> Originator (PLC)
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
1 2 3 4 1 2 3 4
130BE709.10
Illustration 4.3 Process Data
4.4 ODVA Control Profile
4.4.1 Control Word under Instances 20/70
and 21/71
Set parameter 8-10 Control Word Profile to ODVA and select
the instance in parameter 10-10 Process Data Type Selection .
Illustration 4.4 The Control Word in Instances 20 and 21
NOTICE
The bits 00 and 02 in instance 20 are identical with bits
00 and 02 in the more extensive instance 21.
Bit Instance 20 Instance 21
Bit = 0 Bit = 1 Bit = 0 Bit = 1
00 Stop Run Fwd Stop Run Fwd
01 – – Stop Run Rev
02 No function Fault reset No function Fault reset
03 – – – –
04 – – – –
05 – – – Net Ctrl
06 – – – Net Ref
07–15 – – – –
Table 4.2 Bits in Instances 20 and 21
Explanation of the bits:
Bit 0, Run Fwd
Bit 0 = 0: The frequency converter has a stop command.
Bit 0 = 1: Leads to a start command, and the frequency
converter runs the motor clockwise.
Bit 1, Run Rev
Bit 1 = 0: Leads to a stop of the motor.
Bit 1 = 1: Leads to a start reverse of the motor, and the
frequency converter runs the motor counterclockwise.
Bit 2, Fault Reset
Bit 2 = 0: There is no reset of a trip.
Bit 2 = 1: A trip is reset.
Bit 3, No function
Bit 3: No function.
Bit 4, No function
Bit 4: No function.
Bit 5, Net Control
Bit 5 = 0: The frequency converter is controlled via the
standard inputs.
Bit 5 = 1: The DeviceNet controls the frequency converter.
NOTICE
Changes affect parameter 8-50 Coasting Select to
parameter 8-56 Preset Reference Select .
Bit 6, Net Reference
Bit 6 = 0: Reference is from the standard inputs.
Bit 6 = 1: Reference is from DeviceNet.
Control Programming Guide
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