Manual – MOVIDRIVE® MDX60B/61B Communication and Fieldbus Unit Profile
87
7
Sequence control
SEW Unit Profile
7.4
Sequence control
7.4.1
Definition of the control word
The control word is 16 bits wide. Each bit has been assigned a drive inverter function.
The low byte consists of eight fixed function bits that are always valid. The assignment
of the more significant control bits varies for the different control words.
Functions that are generally not supported by the drive inverter cannot be activated by
the control word. The individual control word bits are considered as reserved and must
be set to logical 0 by the user.
Basic control
block
The less-significant part of the control word (bits 0 to 7) contains 8 fixed function bits for
the most important drive functions. The following overview shows the assignment of the
basic control block.
Bit
Function
0
Controller inhibit = "1" / Enable = "0"
1
Enable = "1" / Rapid stop = "0"
2
Enable = "1" / Stop = "0"
3
Hold control: Not active = "1" / Active = "0"
4
Ramp generator selection: Integrator 1 = "1" / Integrator 2 = "0"
5
Parameter set switchover: Parameter set 2 = "1" / Parameter set 1 = "0"
6
Reset: Reset pending fault = "1" / Not active = "0"
7
Reserved
8
Depends on control word
9
10
11
12
13
14
15
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