Bacnet objects – Lenze MCH Series Drives User Manual
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RG-MHBAC
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BACnet Objects
Object MSI-3: PID Mode
This object is for monitoring the general state of the drive’s PID mode as specified by Drive
Parameter #70 (PID Mode).
State
Name
PID Control
1
OFF
PID disabled.
2
NORMAL
Enable direct-acting system (INC FDBK, DEC MTR SPD)
3
REVERSE
Enable reverse-acting system (INC FDBK, INC MTR SPD)
Object MSI-4: H/O/A Mode
This object is for monitoring the drive H/O/A status. If the drive H/O/A is OFF (1) or HAND
(2), serial speed/setpoint and serial start commands will not be accepted from the LAN.
If the drive H/O/A is AUTO (3), depending on the setting of Drive Parameter #30 (Control),
serial speed/setpoint and serial start commands will be accepted. For more information,
refer to Section 3.4.
State
Name
Accept Serial Command?
Speed/Setpoint
Start
1
OFF
No
No
2
HAND
No
No
3
AUTO
Parameter 30 setting
Parameter 30 setting
Object MSI-5: Speed/Setpoint Reference
This object is for monitoring the source of the speed/setpoint reference. States 1 through
9 are speed references. States 10 through 18 are setpoint references. This object must be
in state 1, 9 or 10 for the LAN to be able to command the drive speed. This object must be
in state 11 or 19 for the LAN to be able to command the drive setpoint. The state test table
for this point is as follows:
State
Name Description
Reference
1
-KEY
Keypad Speed Command
(Open loop speed control - PID Disabled)
2
-VDC
0-10 VDC on TB-5A
(Open loop speed control - PID Disabled)
3
-IDC
4-20 mA on TB-5B
(Open loop speed control - PID Disabled)
4
SP#1
Preset Speed #1
(Open loop speed control - PID Disabled)
5
SP#2
Preset Speed #2
(Open loop speed control - PID Disabled)
6
SP#3
Preset Speed #3
(Open loop speed control - PID Disabled)
7
SP#4
Preset Speed #4
(Open loop speed control - PID Disabled
8
-MOP
Motor Operated Pot
(Open loop speed control - PID Disabled)
9
-SER
Serial Speed Command
(Open loop speed control - PID Disabled)
10
-MKB
Keypad Speed Command
(Open loop speed control - PID Enabled)
11
-AKB
Keypad Setpoint Command
(Closed loop setpoint control - PID Enabled)