Version 2.02 15.05.2007 Alarms and Messages of VS 3000
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9.3 Types of alarm
The following alarms are recorded by the VS 3000 Pack Controller and stored in fault memory
S Process fault alarms
S System fault alarms
9.3.1 Process fault alarms
No. Message Process fault reported
1 Mot. cutout Cx Motor overload cutout tripped Compressor Cx
2 H. cyl.t. comp. Cx Cylinder head temperature above upper limit Compressor Cx
3 Oil diff. pr. Cx Low oil pressure cutout/HP cutout tripped Compressor Cx
4 Low LP t
0
below lower limit
5 LP cutout Low-pressure cutout tripped
6 Max. speed F Speed above high threshold for speed adjuster
7 Manual OFF Sx Compressor Stage Sx switched to Manual OFF
8 Manual ON Sx Compressor Stage Sx switched to Manual ON
9 Mot. cutout fan x Motor overload cutout tripped Condenser Fan x
10 High HP t
c
upper limit exceeded
11 HP cutout High-pressure cutout tripped
12 Low liq. level Low refrigerant level switch actuated
13 Service Mode Service mode activated
14 Comp/cond. unload External unload
15 Load shed x Compressor disabled by load shedding ->
Load shed input x active
16 Burst disk Digital input for bursting disk actuated
17 Power failure Controller restart after power failure
18 First start First start of controller and loading of default parameters
19 Setpoint changed Setpoint has been changed
20 External Alarm Digital input for external alarm active
21 Speed cotr. Digital input for speed adjuster/(external alarm) active and
speed/combined control activated
22 External fan Not currently used
23 Emerg. working Digital input for emergency operation/(load shedding 2) is ac-
tive and emergency operating mode is enabled
24 HP cutout D2D Z1 Digital input for high-pressure cutout with discharge gas defro-
sting of Z1 cases is active (not yet implemented)
25 HD-Begr. D2D Z2 Digital input for high-pressure cutout with discharge gas defro-
sting of Z2 cases is active