9
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5.13 - 5 System Protections
The optional additional system protections.
RUNNING MENU
Pump anti-seize protection
Max run fault protection
Max run fault delay
Pump cycle protection
No ow protection
Setup: 5 System Protections
Alarm
30 Minutes
Alarm
Disabled
5.14 - 6 SCADA Setup
The SCADA setup for remote monitoring and control over the Modbus RS485 connection
RUNNING MENU
SCADA baud rate
SCADA parity
SCADA slave address
SCADA watchdog enable
SCADA watchdog timeout
Setup: 6 SCADA Setup
19,200
8 None 1
1
30 Secs
SCADA baud rate The speed of the modbus communications.
SCADA parity The bit format of the modbus packets.
SCADA slave address The slave ID of the device. Each device on the one serial link must have a different device number.
SCADA watchdog
enable
If enabled modbus register 3817 must be successful written =1 less than every SCADA watchdog period
otherwise a SCADA watchdog alarm will be activated and the pumps shutdown. This is used as a ‘Keep
alive’ function.
SCADA watchdog
period
The delay after the last successful modbus command before the SCADA watchdog alarm would be
activated.
Step 5 - Setup (Continued)
Pump anti-seize
protection
If any pump has not run for 7 days, the pump run for 5 seconds to prevent seizing, as long as the system
mode is in sleep, disabled or inhibit.
Max run fault
protection
Alarm = Alarm only if a pump runs at the maximum speed for the max run fault delay. Pump = If a
pump runs at maximum speed for the Max run fault delay then the pump will be inhibited, with 5 restart
attempts before locking out the pump. System = If all available pumps run at the maximum speed for the
Max run fault delay then the system will be inhibited, with 5 restart attempts before locking out the system.
Max run fault delay The delay that the pumps run at maximum speed for, before the Max run fault protection is activated.
Pump cycle protection If the system goes to sleep but wakes up within 5 seconds 10 times within an hour, the fault will be
activated. Alarm = Alarm only, Lockout = Alarm and pump shut down.
No flow protection Alarm = Alarm only if a pump runs with no flow for 30 seconds. Pump = If a pump runs with no flow for 30
seconds then it will be inhibited and another pump brought into operation. System = If a pump runs with
no flow for 30 seconds then the system will be inhibited. The controller will attempt to restart the inhibited
pump or system after a 30 minute delay. If 5 consecutive restarts fail to achieve flow the pump or system
will be locked out. Note - This function uses a ‘close on flow’ flow switch connected to the low level alarm
input instead of a float.
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