52 - Modbus controls
Name Type
Function
Code
Address Notes
Power Factor
Floating
Point
03 28697 (c)
Watt-Hours
Floating
Point
03 28699 (c)
VAR-Hours
Floating
Point
03 28701 (c)
Hz
Floating
Point
03 28703 (c)
(a) Load Banks with Automatic Load Regulation Only
(b) Load Banks with Regenerative Power Sensing Only
(c) Load Banks with Any Automation Option Only
1. Ensure that “Regulate Mode Active” (16705) and “Regenerative
Sensing Mode Active” (16706) are OFF, indicating that the load
bank is ready for Modbus Control
2. Turn “Activate Fan” (16586) ON to energize the cooling fan
3. Verify fan is running by checking that “Fan Running” (8193) is
ON
4. Write the desired amount of KW to apply to “KW To Apply”
(28911)
5. Turn “Apply Load” (16704) ON to energize the desired amount
of load
6. Verify applied load by reading value at “Applied Load” 29077.
e load bank will apply as much load as possible to reach the
“KW To Apply” value, without exceeding it.
7. Monitor other values as desired.
8. Turn “Apply Load” o to de-energize the load
9. Turn “Activate Fan” OFF to stop the cooling fan. Load bank will
continue to operate cooling fan for Cooldown Time set on HMI.
10. Cooldown mode has ended and cooling fan has stopped when
“Fan Running” is OFF
11. Cooldown mode can be stopped by writing ON then OFF to
“Cancel Cooldown” (16487)
modbuS
C
ontrol
d
ireCtionS
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