Danfoss VLT Instruction Manual page 97

VLT ® HVAC Drive Instruction Manual
6-24 Terminal 54 Low Ref./Feedb. Value
Range:
0.000 N/A* [-999999.999 - 999999.999 N/A]
6-25 Terminal 54 High Ref./Feedb. Value
Range:
100.000 N/ [-999999.999 - 999999.999 N/A]
A*
6-26 Terminal 54 Filter Time Constant
Range:
0.001 s* [0.001 - 10.000 s]
6-27 Terminal 54 Live Zero
Option:
[0] Disabled
[1] * Enabled
6-50 Terminal 42 Output
Option:
[0] * No operation
[100] Output frequency
[101] Reference
[102] Feedback
[103] Motor current
[104] Torque rel to limit
[105] Torq relate to rated
[106] Power
[107] Speed
[113] Ext. Closed-loop 1
[114] Ext. Closed-loop 2
[115] Ext. Closed-loop 3
[130] Output freq. 4-20mA
Function:
Enter the analog input scaling value that corresponds to the low voltage/low current value set in
par.6-20 Terminal 54 Low Voltage
Function:
Enter the analog input scaling value that corresponds to the high voltage/high current value set in
par.6-21 Terminal 54 High Voltage
Function:
Enter the time constant. This is a first-order digital low pass filter time constant for suppressing
electrical noise in terminal 54. A high time constant value improves damping, but also increases the
time delay through the filter.
This parameter cannot be adjusted while the motor is running.
Function:
This parameter makes it possible to disable the Live Zero monitoring. For example, this to be used
if the analog outputs are used as part of a de-central I/O system (e.g., when used not as part of
any adjustable frequency drive related control functions, but for feeding a building management
system with data).
Function:
Select the function of Terminal 42 as an analog current output. A motor current of 20 mA corre-
sponds to I .
max
: 0–100 Hz, (0–20 mA)
: Minimum reference - Maximum reference, (0–20 mA)
: -200% to +200% of par. 20-14
: 0 - Inverter Max. Current (par. 16-37), (0–20 mA)
: 0 - Torque limit (par. 4-16 Torque Limit Motor Mode
: 0 - Motor rated torque, (0–20 mA)
: 0 - Motor rated power, (0–20 mA)
Motor Speed High Limit [RPM]
: 0 - Speed High Limit (par.4-13
[Hz] ), (0–20 mA)
: 0–100%, (0–20 mA)
: 0–100%, (0–20 mA)
: 0–100%, (0–20 mA)
: 0–100 Hz
MG.11.A9.22 - VLT ® is a registered Danfoss trademark
6 How to program the adjustable frequency
and par. 6-22 Terminal 54 Low Current
and par. 6-23 Terminal 54 High Current
Maximum Reference/Feedb.
, (0–20 mA)
), (0–20 mA)
and par.4-14
drive
.
.
6
Motor Speed High Limit
6-39