Trane TR200 Operating Instructions Manual page 48

Electronically Controlled Bypass (ECB) Oper-
ation
Bypass mode.The motor operates at full speed across the line when a run command is present. Contactor M3
is closed and M1 (optional) and M2 are open.
Test mode.Test mode puts the panel into bypass mode and will automatically run in bypass. Contactor M1 is
closed supplying power to the drive for test purposes while M2 is open. Contactor M3 controls the operation of
the motor in bypass, closed to run the motor, open to remove power. The control keys on the drive keypad will
not control the bypass until test mode is removed.
Auto bypass mode.When in drive mode, auto bypass is a timed interval that allows a fault condition in the drive
to activate running the motor in bypass without operator intervention.
Mode of Operation Select
• Mode of operation is programmed through the 31-00 parameter group. See table below.
Parameter Number
31-00
31-01
31-02
31-03
31-10
31-11
Table 6.7
48
Selection
Bypass Mode
Bypass Start Time Delay
Bypass Trip Time Delay
Test Mode Activation
Bypass Status Word
Bypass Running Hours
TR200 Option Panel Operating Instructions
Function
Selects source of motor power.
(0) Drive (drive mode) (1) Bypass
(bypass mode)
Sets a delay time for starting in by-
pass that allows for external ac-
tions to take place prior to line
starting the motor.
0-60 Seconds (default value is 5
seconds)
Setting a value other than 0 sec-
onds enables auto bypass. Bypass
trip delay sets the delay time before
switching to bypass mode when
the drive has a fault.
0-300 seconds (default is 0 seconds
= OFF)
Setting to enabled puts bypass in
test mode. See manual for warn-
ings and cautions.
(0) disabled (default value) (1) ena-
bled
Read only display which shows the
bypass status in hex. See next table
for details.
0, 216-1 (default value is 0)
Read only display which shows by-
pass running hours.