Control Word; Control Word Enable; Bits 0-7 And Bit 9: Sequencing Control; Bit 8: Analogue/Preset Reference - Emerson SP1201 Installation Manual

Safety Product
Introduction
Information information
6.42

Control word

Drive mode Regen
Bit SP
Coding
Range Regen
Default Regen
Update rate Bits 0 –7: 4ms, Bits 8-15: Background
6.43

Control word enable

Drive mode Regen
Bit SP
Coding
1
Default Regen
Update rate Related to bits 0-7: 4ms, related to bits 8-15: Background
Pr 6.42 and Pr 6.43 provide a method of controlling the sequencer inputs and other functions directly from a single control word. If Pr 6.43 = 0 the
control word has no effect, if Pr 6.43 = 1 the control word is enabled. Each bit of the control word corresponds to a sequencing bit or function as
shown below.
Bits marked with * have no effect in regen mode.
Bit Function
0 Drive enable
1* Run forward
2* Jog
3* Run reverse
4* Forward/reverse
5* Run
6* Not stop
7 Auto/manual
8* Analogue/Preset reference
9* Jog reverse
10 Reserved
11 Reserved
12 Trip drive
13 Reset drive
14 Keypad watchdog

Bits 0-7 and bit 9: sequencing control

When the control word is enabled (Pr 6.43 = 1), and the Auto/manual bit (bit7) are both one, bits 0 to 6 and bit 9 of the control word become active.
The equivalent parameters are not modified by these bits, but become inactive when the equivalent bits in the control word are active. When the bits
are active they replace the functions of the equivalent parameters. For example, if Pr 6.43 = 1 and bit 7 of Pr 6.42 = 1 the drive enable is no longer
controlled by Pr 6.15, but by bit 0 of the control word. If either Pr 6.43 = 0, or bit 7 of Pr 6.42 = 0, the drive enable is controlled by Pr 6.15.

Bit 8: Analogue/preset reference

When the control word is enabled (Pr 6.43) bit 8 of the control word becomes active. (Bit 7 of the control word has no effect on this function.) The state
of bit 8 is written to Pr 1.42. With default drive settings this selects analogue reference 1 (bit8 = 0) or preset reference 1 (bit8 = 1). If any other drive
parameters are routed to Pr 1.42 the value of Pr 1.42 is undefined.
Bit12: Trip drive
When the control word is enabled (Pr 6.43) bit 12 of the control word becomes active. (Bit 7 of the control word has no effect on this function.) When
bit 12 is set to one a CL.bit trip is initiated. The trip cannot be cleared until the bit is set to zero
Bit 13: Reset drive
When the control word is enabled (Pr 6.43) bit 13 of the control word becomes active. (Bit 7 of the control word has no effect on this function.) When
bit 13 is changed from 0 to 1 the drive is reset. This bit does not modify the equivalent parameter (Pr 10.33).
Bit 14: Keypad watchdog
When the control word is enabled (Pr 6.43) bit 14 of the control word becomes active. (Bit 7 of the control word has no effect on this function.) A
watchdog is provided for an external keypad or other device where a break in the communication link must be detected. The watchdog system can be
enabled and/or serviced if bit 14 of the control word is changed from zero to one with the control word enabled. Once the watchdog is enabled it must
be serviced at least once every second or an "SCL" trip occurs. The watchdog is disabled when an "SCL" trip occurs, and so it must be re-enabled
when the trip is reset.
116
System Mechanical
design installation
FI DE Txt VM DP ND
0 to 32,767
0
FI DE Txt VM DP ND
0
Equivalent parameter
Pr 6.15
Pr 6.30
Pr 6.31
Pr 6.32
Pr 6.33
Pr 6.34
Pr 6.39
Pr 1.42
Pr 6.37
Pr 10.33
www.controltechniques.com
Electrical Getting
Optimisation
installation started
RA NC NV PT US RW BU
1
RA NC NV PT US RW BU
1
Technical Component
Parameters
data
PS
1 1
PS
1
Unidrive SP Regen Installation Guide
Diagnostics
sizing
Issue Number: 2