Electromechanical Bypass (Emb2) Operation; Typical Control Connections For Common Hvac Applications - Trane VLT AQUA Drive FC 202 VLT AutomationDrive FC 301 Instruction Manual

Electromechanical Bypass (E...

5 Electromechanical Bypass (EMB2) Operation

5.1.1 Typical Control Connections for Common HVAC Applications

Drive Terminal Parameter Number
27 500
27 501
29 502
18 510
19 511
27 512
29 531
01 & 02 540 [0]
01 & 02 540 [0]
Table 5.1 EMB2 Default Parameter Settings for Common HVAC Applications
If the drive is reinitialized, be sure that these settings are maintained or reset for proper bypass.
Name
Remote Drive Start (with common start/stop)
Remote Drive Start (without common start/stop)
Motor Running on Drive
Run Request (for run permissive)
Run Enable (for run permissive)
Safety Stop
Drive Fault
Fire Mode
Drive Mode
Bypass Mode
Fire Mode
Table 5.2 Common Functions for Controlling Motor using Bypass and Typical Terminal Connections.
Commands enable drive functions. Status reports describe conditions, but do not enable a function.
Vertical Bypass/Non Bypass Panel
Parameter Name Value Number
Digital I/O Mode
Term 27 mode
Term 29 Mode
Term 18 digital input
Term 19 digital input
Term 27 digital input
Term 29 digital output
Relay 1 function
Relay 1 off delay 0.00 seconds
Function
Input Command
Input Command
Output Status
Output Command
Input Command
Input Command
Output Status
Input Command
Output Status
Output Status
Output Status
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Value Name
0 PNP
0 Input
1 Output
8 Start
52 Run Permissive
7 External Interlock
160 No Alarm
167 Start Command Active
Off Delay
Drive Terminals EMB2 X59
13, 18
04, 05, 06
Function
External Interlock
External Interlock
Auto Bypass
Common run/stop
Run Permissive
External Interlock
Auto Bypass
Run Permissive
Run Permissive
EMB2 X55
3, 4
11, 12
1, 2
5, 6
5, 6, 7
7, 8
1, 2
3, 4
9, 10
5-1
5 5