Danfoss VLT 5000 Instruction Manual page 37

Example 2: A controller node writes 18.0 Hz to VLT
parameter 201, Output Frequency Low Limit.
The conversion index is -1, so the conversion
factor is 0.1.
The controller node sends the following
parameter write request to the VLT.
A controller node writes [2] (REFERENCE
Example 3:
[UNIT]) to parameter 007 (009), Large Display
Readout, of the VLT.
The controller node sends the following
parameter write request to the VLT.
Example 4:
A controller node reads the value of parameter
407 (411), Switching Frequency, in the VLT.
The value stored in parameter 407 is 10 kHz.
The conversion index is 2, so the conversion
factor is 100.
The controller node sends the following
parameter read request to the VLT.
VLT 5000 parameters are shown in parenthesis, where applicable.
36
nvoParamCmd.learn =
LN_LEARN_CURRENT
nvoParamCmd.selector = 201
nvoParamCmd.value[0] = 0
nvoParamCmd.value[1] = 0
nvoParamCmd.value[2] = 0
nvoParamCmd.value[3] = B4 hex (180
decimal)
nvoParamCmd.learn =
LN_LEARN_CURRENT
nvoParamCmd.selector = 7
nvoParamCmd.value[0] = 0
nvoParamCmd.value[1] = 0
nvoParamCmd.value[2] = 0
nvoParamCmd.value[3] = 2
nvoParamCmd.learn = LN_RECALL
nvoParamCmd.selector = 407
nvoParamCmd.value[0] = 0
nvoParamCmd.value[1] = 0
nvoParamCmd.value[2] = 0
nvoParamCmd.value[3] = 0
VLT ® 5000 / VLT ® 6000
The controller node receives the following
parameter access response from the VLT.
nviParamResp.learn =
LN_LEARN_CURRENT
nviParamResp.selector = 201
nviParamResp.value[0] = 0
nviParamResp.value[1] = 0
nviParamResp.value[2] = 0
nviParamResp.value[3] = B4 hex
nviParamResp.day = 0
nviParamResp.hour = 0
nviParamResp.minute = 0
nviParamResp.second = 0
nviParamResp.millisecond = 0
Time 1 - The controller node receives the
following parameter access response from the
VLT.
nviParamResp.learn =
LN_LEARN_CURRENT
nviParamResp.selector = 7
nviParamResp.value[0] = 0
nviParamResp.value[1] = 0
nviParamResp.value[2] = 0
nviParamResp.value[3] = 2
nviParamResp.day = 0
nviParamResp.hour = 0
nviParamResp.minute = 0
nviParamResp.second = 0
nviParamResp.millisecond = 0
The controller node receives the following
parameter access response from the VLT.
nviParamResp.learn = LN_RECALL
nviParamResp.selector = 407
nviParamResp.value[0] = 0
nviParamResp.value[1] = 0
nviParamResp.value[2] = 0
nviParamResp.value[3] = 64 hex (100
decimal)
nviParamResp.day = 0
nviParamResp.hour = 0
nviParamResp.minute = 0
nviParamResp.second = 0
nviParamResp.millisecond = 0
MG.60.N1.22
HVAC / VLT ® 8000 AQUA
- VLT is a registered Danfoss trademark