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Danfoss VLT HVAC Series User Manual

Danfoss VLT HVAC Series
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3.7.5 5-3* Digital Outputs
Parameters for configuring the output functions for the output terminals. The two solid state digital outputs are common for terminals 27 and 29. Set the
I/O function for terminal 27 in par.5-01
Terminal 27 Mode
and set the I/O function for terminal 29 in par.5-02
Terminal 29 Mode
. These parameters
cannot be adjusted while the motor is running.
The digital outputs can be programmed with these functions:
[0] No operation
Default for all digital outputs and relay outputs
[1] Control ready The control board receives supply voltage.
[2] Drive ready The adjustable frequency drive is ready for operation and applies a supply signal on the control
board.
[3] Drive ready / remote control The adjustable frequency drive is ready for operation and is in Auto On mode.
[4] Stand-by / no warning The adjustable frequency drive is ready for operation. No start or stop command is been given (start/
disable). There are no warnings.
[5] Running The motor is running.
[6] Running / no warning The output speed is higher than the speed set in par.1-81
Min Speed for Function at Stop [RPM]
.
The motor is running and there are no warnings.
[8] Run on reference / no warning The motor runs at reference speed.
[9] Alarm An alarm activates the output. There are no warnings.
[10] Alarm or warning An alarm or a warning activates the output.
[11] At torque limit The torque limit set in par.4-16
Torque Limit Motor Mode
or par. 1-17 has been exceeded.
[12] Out of current range The motor current is outside the range set in par.4-18
Current Limit
.
[13] Below current, low The motor current is lower than set in par.4-50
Warning Current Low
.
[14] Above current, high The motor current is higher than set in par.4-51
Warning Current High
.
[15] Out of speed range The output speed is outside the range set in par.4-52
Warning Speed Low
and par.4-53
Warning
Speed High
.
[16] Below speed, low The output speed is lower than the setting in par.4-52
Warning Speed Low
.
[17] Above speed, high The output speed is higher than the setting in par.4-53
Warning Speed High
.
[18] Out of feedback range The feedback is outside the range set in par.4-56
Warning Feedback Low
and par.4-57
Warning
Feedback High
.
[19] Below feedback, low The feedback is below the limit set in par.4-56
Warning Feedback Low
.
[20] Above feedback, high The feedback is above the limit set in par.4-57
Warning Feedback High
.
[21] Thermal warning The thermal warning turns on when the temperature exceeds the limit in the motor, the adjustable
frequency drive, the brake resistor, or the thermistor.
[25] Reverse
Reversing. Logic ‘1’ =
relay activated, 24 V DC when CW rotation of the motor. Logic ‘0’ = relay not
activated, no signal, when CCW rotation of the motor.
[26] Bus OK Active communication (no timeout) via the serial communication port.
[27] Torque limit and stop Use in performing a coasting stop and in torque limit condition. If the adjustable frequency drive
has received a stop signal and is at the torque limit, the signal is Logic ‘0’.
[28] Brake, no warning The brake is active and there are no warnings.
[29] Brake ready, no fault The brake is ready for operation and there are no faults.
[30] Brake fault (IGBT) The output is Logic ‘1’ when the brake IGBT is short-circuited. Use this function to protect the
adjustable frequency drive if there is a fault on the brake modules. Use the output/relay to cut out
the AC line voltage from the adjustable frequency drive.
[35] External Interlock External Interlock function has been activated via one of the digital inputs.
VLT
®
HVAC Drive Programming Guide 3 Parameter Description
MG.11.C6.22 - VLT
®
is a registered Danfoss trademark
3-61
3

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Danfoss VLT HVAC Series Specifications

General IconGeneral
Protection FeaturesOvercurrent, Overvoltage, Undervoltage, Overtemperature, Short circuit
Communication InterfacesProfibus, Ethernet
Cooling MethodForced convection
Ambient Temperature-10°C to +40°C
Enclosure RatingIP20, IP21, IP55
Output Voltage0 - 100% of supply voltage

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