Trane TR150 Programming Manual page 79

Parameters
24-05 FM Preset Reference
Range:
0 % [-100 - 100
*
%]
3 3
24-09 Fire Mode Alarm Handling
Option:
[0] Trip+Reset,
Critical
Alarms
[1] Trip, Critical
Alarms
[2] Trip, All
Alarms/Test
NOTICE
Warranty-affecting alarms. Certain alarms can affect the
lifetime of the frequency converter. Should one of these
ignored alarms occur whilst in Fire Mode, a log of the
event is stored in the Fire Mode Log.
Here the 10 latest events of warranty-affecting alarms,
fire mode activation and fire mode deactivation are
stored.
NOTICE
The setting in 14-20 Reset Mode is disregarded in case of
Fire Mode being active (see parameter group 24-0* Fire
Mode).
No
4
7
8
9 Inverter overloaded
13
14
16
29 Power card temp
33
38
65 Ctrl. card temp
68
Table 3.12 Fire Mode Alarm Handling
78
Function:
Enter the required preset reference/set point
as a percentage of the Fire Mode Max
Reference set in Hz.
Function:
If this mode is selected, the frequency
converter will continue to run, ignoring most
alarms, even if doing so it may result in
damage of the frequency converter. Critical
alarms are alarms, which cannot be suppressed
but a restart attempt is possible (Infinity
Automatic Reset).
In case of a critical alarm, the frequency
converter trips and does not auto-restart
(Manual Reset).
It is possible to test the operation of Fire
Mode, but all alarm states are activated
normally (Manual Reset).
Critical
Description
Alarms
Mains ph. Loss
DC over volt x
DC under volt x
Over current x
Earth fault x
Short circuit x
Inrush fault
Internal fault
Safe Stop x
TR150 Programming Guide
3.16.2 24-1* Drive Bypass
The frequency converter includes a feature, which can be
used to automatically activate an external electro-
mechanical bypass in case of the event of a Fire Mode
Coast (see 24-00 FM Function).
The bypass switches the motor to operation direct on line.
The external bypass is activated by means of one of the
digital outputs or relays in the frequency converter, when
programmed in parameter group 5-3* Digital Outputs or
parameter group 5-4* Relays.
NOTICE
The Drive Bypass cannot be deactivated if in Fire Mode.
It can be deactivated only by either removing the Fire
Mode command signal or the power supply to the
frequency converter!
When the Drive Bypass function is activated, the display on
the keypad shows the status message Drive Bypass. This
message has a higher priority than the Fire Mode status
messages. When the automatic Drive Bypass function is
enabled, it cuts in the external bypass according to
Illustration 3.16
Warranty
Affecting
Alarms
Illustration 3.16 Drive Bypass Function
x
24-10 Drive Bypass Function
x
Option:
x
x
[0] Disabled
*
x
[2] Enabled (Fire
x
Mode only)
BAS-SVP16A-EN - Rev. 2013-09-05
Function:
This parameter determines, which circum-
stances will activate the Drive Bypass
Function:
The Bypass Function operates at Trip at
Critical Alarms, Coast or Bypass Delay Timer
if the timer expires before reset attempts
have completed.