Enerpac ZU4 Instructions page 9

6.5 O "Diagnose" Menu
This screen allows
(see Screen 15)
the operator to troubleshoot various
pendant problems. If the number "1"
does not appear when a pendant button
is pushed, problems with the pendant
button switches and/or pendant cord
may be present (See Screens 16 and
17). Use Local mode to operate pump
until the problem can be corrected.
Refer to QRC step #11.
Pendant on/off button
Pendant advance button
(not used
on this
pump version)
Diagnose screen
with pendant
on/off button
pushed.
Diagnose screen
with pendant
advance button
pushed .
6.5 P "Calibration" Menu
This screen allows the
(see Screen 18)
operator to adjust the pressure value
shown on the LCD to match a master
gauge.
To access the Calibration menu, fi rst
go to the Units menu.
Then, press and hold the shroud Motor
on/off button for 7 seconds. ENTRY CODE will appear on the
LCD.
Then, press and hold both the Down Arrow and Up Arrow buttons
for 7 seconds. CAL PT A will appear on the LCD.
See Table 2, "Z-Class Pressure Transducer Calibration", located
near the end of this document. Follow the steps in the table to
perform calibration procedures.
Screen 15
DIAGNOSE
00001
Screen 16
DIAGNOSE
Press
01001
PSI MPa
BAR Nm
Ft-lb
Screen 17
DIAGNOSE
Press
10001
PSI MPa
BAR Nm
Ft-lb
Screen 18
CAL PT A
SET
0
6.6 LCD Fault Conditions
Any fault condition will shut down the pump and prevent it from
starting.
6.6 A Clearing a Fault Condition from the LCD
PSI MPa
BAR Nm
After the fault causing problem has been corrected, clear the fault
Ft-lb
message from the LCD by disconnecting electrical power from
the pump. Wait until all characters clear the LCD (~ 20 seconds),
then reconnect power.
6.6 B Power Off Fault
"POWER OFF"
DISPLAY:
(see Screen 19)
occurs when the AC line power drops
to 65% or less of nominal voltage. The
pump will automatically shut-off the
valve solenoid and motor, and "Power
Off " will be displayed on the LCD.
Note: The Power Off message will also
appear for several seconds after the
pump has been disconnected from
electrical power.
6.6 C Button Fault
"BUTTON FAULT"
DISPLAY:
The Button fault occurs
(see Screen 20)
when the microcontroller detects that
any button has been pressed during
the boot sequence or if the shroud
Motor on/off button has been pressed
for more than 3 seconds.
6.6 D Motor Overload Fault
"MTR OVLD FAULT"
DISPLAY:
and
"Motor Overload"
(see Screen 21)
fault occurs when the electrical current
draw exceeds the pre-set limit of
the pump's internal circuit breaker.
The circuit breaker will automatically
reset in about 2 to 3 minutes after
the condition has been corrected.
However, before the pump can be
restarted, the operator must clear the fault by disconnecting
and reconnecting electrical power as described in Section 6.6 A.
6.6 E Oil Temperature Fault
PSI
"OIL TEMP FAULT"
DISPLAY:
Note: The LCD will display this fault
only if the pump is equipped with the
optional oil / level temperature switch
(available only on 2.5, 5, and 10 gallon
reservoir sizes).
(see Screen 22)
fault occurs when the temperature of the oil inside the reservoir
exceeds 175 ºF [80 °C].
9
The Power Off fault
Screen 19
Screen 20
The Motor Overload
Screen 21
Screen 22
The Oil Temperature
POWER
OFF
BUTTON
FAULT
MTR OVLD
FAULT
MOTOR
OVERLOAD
OIL TEMP
FAULT