Danfoss VLT HVAC Series User Manual

8-72 MS/TP Max Masters
Range: Function:
127 N/A* [0 - 127 N/A] Define the address of the master which holds the highest address in this network. Decreasing this
value optimizes polling for the token.
NOTE!
This parameter is active only when par.8-30
Protocol is set to [9] Adjustable Frequency Drive Option .
8-73 MS/TP Max Info Frames
Range: Function:
1 N/A* [1 - 65534 N/A] Define how many info/data frames the device is allowed to send while holding the token.
NOTE!
This parameter is active only when par.8-30
Protocol is set to [9] Adjustable Frequency Drive Option .
8-74 "Startup I am"
Option: Function:
[0] * Send at power-up
[1] Continuously Choose whether the device should send the "I-Am" service message only at power-up or continu-
ously with an interval of approx. 1 min.
NOTE!
This parameter is active only when par.8-30
Protocol is set to [9] Adjustable Frequency Drive Option .
8-75 Initialization Password
Range: Function:
0 N/A* [0 - 0 N/A] Enter the password needed for execution of Drive Re-initialization from BACnet.
NOTE!
This parameter is active only when par.8-30
Protocol is set to [9] Adjustable Frequency Drive Option .
3.9.7 8-8* Adjustable Frequency Drive Port Diagnostics
These parameters are used for monitoring the bus communication via the Adjustable Frequency Drive Port.
8-80 Bus Message Count
Range: Function:
0 N/A* [0 - 0 N/A] This parameter shows the number of valid messages detected on the bus.
VLT
®
HVAC Drive Programming Guide 3 Parameter Description
MG.11.C6.22 - VLT
®
is a registered Danfoss trademark 3-99
3

Danfoss VLT HVAC Series Specifications

General

Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short circuit
Communication Interfaces	Profibus, Ethernet
Cooling Method	Forced convection
Ambient Temperature	-10°C to +40°C
Enclosure Rating	IP20, IP21, IP55
Output Voltage	0 - 100% of supply voltage