Iskra FPC 200 - Starts Per Hour - ANSI Code 66

Functionality
USER MANUAL FPC 200 - 3/2017 57
Starts per hour - ANSI code 66
Protection Starts per hour is meant to prevent too frequent starts of the rotating machine in a given time window.
2.5.5.1 Functionality
Rotating machine manufacturers usually define allowed number of starts within given time period by one of two criteria:
 How many starts are allowed within one hour
 How many consecutive starts are allowed according to current thermal state of the machine
This protection can be set up by either of those criteria, or even both of them. User can also define minimum delay
between starts. When any of given criteria is reached the protection inhibits starting of the machine by blocking the
circuit breaker closing command. Thermal state of the machine is determined by Thermal overload protection [2.5.1],
which needs to be enabled for proper thermal detection of the machine.
Parameter
Range
Description
Enabled
No
Yes
Enabling protection function.
Delay between starts
0 … 5 … 5400 s
Minimum required time between two machine starts.
Enable allowed starts
No
Yes
Yes – Activated allowed starts functionality.
No – Deactivated allowed starts functionality.
Allowed starts
1 … 10 … 60
Number of allowed machine starts inside Starts period.
Starts period
1 … 60 … 360 min
Machine starts period.
Enable consecutive starts
No
Yes
Yes – Activated consecutive starts functionality.
No – Deactivated Consecutive starts functionality.
Consecutive starts period
1 … 10 … 90 min
Consecutive starts period.
Allowed cold starts
1 … 2 … 5
Number of allowed consecutive cold starts.
Allowed hot starts
1 … 5
Number of allowed consecutive hot starts.
Block settings 1
None
Variable 1
Variable 2
Variable 3
Variable 4
Input of blocking Inhibit signal of engine start.
Table 46 Starts per hour function parameters.
2.5.5.2 Counters
Name
Description
Lockout time
Time of Inhibit signal dropout in real time, in seconds.
Current starts
Current number of starts remaining, cold starts if the cold state is
active and hot starts if hot state is currently present.
Consecutive cold starts
Current number of lapsed cold starts in certain short period of
time.
Consecutive hot starts
Current number of lapsed hot starts in certain short period of time.
Inhibit counter
Consecutive number of inhibit signals.
Starts counter
Consecutive number of start signals.
Table 47: Counters presented in starts per hour function.