Danfoss VLT 5000 Instruction Manual page 42

805 805 805 805 805
Control W Contr Contr ol W ol Wor or or or ord d d d d ol W
Contr Contr ol W
Bit 10 Function Bit 10 Function
Bit 10 Function Bit 10 Function Bit 10 Function
927 927 927 927 927
Parameter edit Parameter edit Parameter edit Parameter edit Parameter edit
928 928 928 928 928
Pr Pr Pr Pr Process contr ocess contr ocess control ol ol ol ol ocess contr ocess contr
970 970
970 970 970
Edit setup select Edit setup select Edit setup select Edit setup select Edit setup select
971 971 971 971 971
Stor Stor Store data value e data value e data value e data value
Stor Stor e data value
MG.60.N1.22 - VLT is a registered Danfoss trademark
Selection:
No function
(NO FUNCTION)
Bit 10 = 1: control word active
(BIT 10 = 1 >CTW ACTIVE)
Bit 10 = 0: control word active
(BIT 10 = 0 >CTW ACTIVE)
Bit 10 = 0: bus time out
(BIT 10 = 0 >TIME OUT)
Function:
According to the drive's standard
communications profile, control word and
speed reference will be ignored if bit 10 of the
control word is 0. Parameter 805 lets the user
change the function of bit 10. This is some
times necessary, as some masters set all bits
to 0 in various fault situations. In these cases,
it makes sense to change the function of bit
10 so that the VLT is commanded to stop
(coast) when all bits are 0.
Data Value:
Disable (DISABLE)
Enable (ENABLE)
Data Value:
Disable (DISABLE)
Enable (ENABLE)
Data Value:
Preprogrammed (FACTORY SETUP) [0]
Setup 1 (SETUP 1)
Setup 2 (SETUP 2)
Setup 3 (SETUP 3)
Setup 4 (SETUP 4)
Active Setup (ACTIVE SETUP)
Data Value:
No action (NO ACTION)
Store all setups
(STORE ALL SETUPS
Store edit setup
(STORE EDIT SETUP)
Store active setup
(STORE ACTIVE SETUP)
Factory Setting
VLT ® 5000 / VLT ® 6000
Description of Selections:
• No function. Bit 10 is ignored, i.e.,
[0] control word and speed reference are
always valid.
[1] • Bit 10 = 1 >CTW active. The control
word and speed reference are
[2] ignored if bit 10 = 0.
[3]
With Bit 10 = 0 >CTW active
selected , nviStar tStop and
nviResetFault commands will not
function.
• Bit 10 = 0 >CTW active. The control
word and speed reference are
ignored if bit 10 = 1. If all bits of the
control word are 0, the VLT reaction
will be coasting.
• Bit 10 = 0 >time out. The time out
function selected in parameter 804 is
activated when bit 10 is 0.
This parameter determines if LonWorks can
[0]
be used to access and edit drive parameters.
[1]
This parameter determines LonWorks control
[0] of the drive. When Enable is selected, drive
[1] parameters 503 through 508 determine the
interaction between various LonWorks and
digital drive input commands. See the
VLT Instruction Manual for details.
This parameter selects the setup being edited,
through either the drive control panel or
[1] LonWorks. The drive may operate in one
[2] setup while editing another. Active setup
[3] selects the parameter being edited as the
[4] setup controling drive operation.
[5]
When this parameter is set to Store active
[0]
setup, LonWorks downloaded parameters are
written to EEPROM and stored. Store edit
[1] setup stores the setup selected in parameter
970. Store all setups stores all setups in
[2]
parameter 970. When finished (appx. 15 sec.),
it automatically returns to No action. Any
[3] parameters values written via the serial bus
with No action selected are lost when power
is removed from the drive. The function is only
activated with the VLT in stop mode.
HVAC / VLT ® 8000 AQUA
41