User Manual_S7-1200 compressor controller
21
Table 9 Structure of an alarm message.
Class
Code
Status
Data
Time
Content
E
5
IO
2016-
06-01
12:00:00 Too low oil pressure
Table 10 presents all events recorded by the compressor controller.
Table 10 Events recorded by the controller.
Code Class Content
1
E
Incorrect sequence, loss or imbalance of power.
2
E
Compressor motor protection tripped.
3
E
Fan motor protection tripped.
4
E
Protection tripped.
5
E
Emergency button tripped.
6
E
PLC fault.
7
E
No connection between the HMI panel and the PLC.
8
E
Retentive memory lost. Restored to factory parameters. Check and adjust
all the controller parameters.
9
E
Contaminated oil separator.
10
E
Contaminated oil filter.
11
E
Compressor failed to start within the time specified.
12
E
Inverter fault:
name and number of the fault in hex.
13
E
Inverter safety circuit tripped.
14
E
No communication with inverter.
15
E
Error in communication with the inverter:
number in hex
.
16
E
The inverter is not ready for operation.
17
E
Oil temperature too high.
18
E
Air pressure too high.
19
E
Oil pressure too high.
20
E
Motor current too high.
21
E
Motor temperature too high.
22
E
Pressure drop in the separator too high.
23
E
Compressor locked. Please enter the unlock code.
49
A
Air filter contaminated.
50
A
Compressor starting stopped because of the ongoing load shedding.
51
A
The maximum number of compressor starts per hour has been exceeded.
52
A
Compressor service to be performed.
53
A
Web server error.
54
A
Real-time clock settings lost.
55
A
PID controller error. Error code:
number in hex
.
56
A
PID Ultra Speed controller error. Error code:
number in hex
.
57
A
Oil temperature too low.
58
A
Air temperature too high.
59
A
Controller outputs testing enabled.
81
S
Last PLC shut-down:
time and date.
Current PLC switch-on:
time and
date.
Number of PLC starts:
number.
