IMPULSE
®
•G+ Mini Technical Manual
November 2020
Page 77
5.2.12 ON/OFF Delay Timer Function
•
The timer function is enabled when the timer function input (H01.01~H1.07 = 043) and the timer function output
(H02.01~H02.03 = 012) are set respectively.
•
These serve as general purpose I/O. Chattering of sensors, switches, contactors, etc., can be prevented by
setting a delay time.
•
When the timer function input
ON
time is longer than the value set for
C12.03
(Timer function ON-Delay Time),
the timer function output turns
ON
.
•
When the timer function input
OFF
time is longer than the value set for
C12.04
(Timer function OFF-Delay
Time), the timer function output turns
OFF
.
5.2.13 Maintenance Timer
The maintenance timer feature will set an output after a pre-determined period of time (hours) to alert an operator
to perform or take some action, i.e. grease the bearings.
To use this feature, program the number of hours between each maintenance cycle in C12.05. Then program a
digital input for maintenance timer enable (H01.01–H01.07 = 43), and then program an MFDO (H02.xx = 37).
U01.52 will display the maintenance timer accumulator. Setting C12.05 = 00 will disable this function.
When the pre-determined time has been reached (C12.05), the digital output will close, the keypad will flash “MNT,”
and the VFD will slow down to the speed determined by the Maintenance Speed Gain (C12.06).
The maintenance alarm can be set in one of two methods.
Method 1:
A digital input can be programmed for Maintenance Reset (H01.01–H01.07 = 05A). Closing this input
will reset the maintenance accumulator (U01.52) and reset the digital output.
Method 2:
Press the Local/Remote (LO/RE) button three consecutive times with no more than 2 seconds between
each press until the blinking RESET message is displayed. Press ENTER to reset the maintenance timer. The
RESET message will stop blinking when maintenance is reset. The digital output will turn off at this time.
Parameter Name
Function
Range
Default
C12.03
ON-Delay Timer
Timer output On-delay
0.0–3000.0
0.0
C12.04
OFF-Delay Timer
Timer output Off-delay
0.0–3000.0
0.0
Parameter
Name
Function
Range
Default
C12.05
Maintenance Timer
Maintenance Timer Trip Level
00000–32767
00000
C12.06
Maintenance Speed Gain
Speed Reference Gain
0.00–1.00
0.5
Summary of Contents for IMPULSE G+ Mini
Page 15: ...IMPULSE G Mini Technical Manual November 2020 Page 15 Figure 2 1 Long Time Storage...
Page 18: ...IMPULSE G Mini Technical Manual November 2020 Page 18 Figure 2 4 Diagram C...
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Page 182: ...IMPULSE G Mini Adjustable Frequency Crane Controls Technical Manual November 2020...
