13
RG-MHBAC
BACnet Objects
State
Name Description
Reference
12
-VDC
0-10 VDC on TB-5A
(Closed loop setpoint control - PID Enabled)
13
-IDC
4-20 mA on TB-5B
(Closed loop setpoint control - PID Enabled)
14
SP#1
Preset Setpoint #1
(Closed loop setpoint control - PID Enabled)
15
SP#2
Preset Setpoint #2
(Closed loop setpoint control - PID Enabled)
16
SP#3
Preset Speed #3
(Open loop speed control - PID Enabled)
17
SP#4
Preset Setpoint #4
(Closed loop setpoint control - PID Enabled)
18
-MOP
Motor Operated Pot
(Closed loop setpoint control - PID Enabled)
19
-SER
Serial Setpoint Command
(Closed loop setpoint control - PID Enabled)
4.8 Multi-State Value (MSV) Object Descriptions
Object MSV-1: Speed Source Selection
This object mimics the functionality of the SPEED SOURCE key on the drive keypad. It
is used to determine whether the drive will get its speed/setpoint reference from Drive
Parameter #24 (Auto Source) or Drive Parameter #29 (Hand Source).
State
Name
Reference Source
1
NORMAL
Normal Source
2
HAND
Hand Source Only
3
AUTO
Auto Source Only
This object allows the user to toggle between OPEN loop speed control and CLOSED loop
PID control when PID mode is ENABLED (refer to MSI-3). The ability to command this
object through the LAN is dictated by Drive Parameter #30 (Control) and the drive HOA
(refer to MSI-4)
For more information on SPEED SOURCE, refer to the MCH Installation and Operation Manual (MH01).
4.9 Reference and Links
MCH Series Variable Frequency Drives visit:
http://www.lenze-actech.com
BACnet and ASHRAE, Inc. visit:
http://www.bacnet.org
