Publicidad
Saturn ONE
TROUBLESHOOTING
Failure
Fan not operating
Insufficient air flow
Excessive vibration
The fan does not switch off
Alarm signal
PROBLEM SOLVING (EC version only)
The
following
are
Code. Alarm
Solution
1
High voltage Check that the input voltage is within the range allowed by the device or that no voltage spikes occur.
Check that the input voltage is within the range allowed by the device or that there are no voltage dips.
2
Low voltage
Note: The reporting of the low voltage alarm when shutting down the device is to be considered normal
Check that the ambient temperature at which the device is operating is within the proper operating range of the
equipment.
Temperature
Check that the fan meshes are clear and that the motor dissipation fins are clean so that the inverter can properly
3
too high
dissipate internal heat.
Wait for the temperature of the device to drop (below 80°C for the IGBT module and below 105°C for the board)
before requesting a new movement.
The inverter detected too high a current, so it reduced the speed and tried again at the required RPM three times
in succession. Check that the fan is free to rotate without hindrance (for safety reasons, ensure that the fan is
switched off before carrying out the checks).
Check for possible bearing problems by checking that there is no play on the fan's axis of rotation (for safety
Current
too
reasons, make sure the fan is switched off before carrying out checks).
4
high (lock)
Check that the input voltage is within the correct operating range of the equipment and that the cable cross-section
in use is adequate.
Try resetting the alarm and retry the movement or turn the device off and on again after waiting at least one minute
for the internal capacitors to fully discharge.
Check with Munters that the acceleration at start-up is not too high (boost).
Loss of syn-
Try resetting the alarm and retry the movement or turn the device off and on again after waiting at least one
5
chronism
minute. Check with Munters that the minimum speed is not too low (FF to FOC) or that the acceleration at start-up
(lock)
is not too high (boost).
No action required, the device autonomously retries the movement up to a maximum of three consecutive times.
The time interval between one attempt and the next is increasing: following the first alarm the device waits a time
Current
too
6
of 1 second before repeating the movement, following the second error the wait before the new movement attempt
high
is 10 seconds while on the third alarm the last movement attempt is delayed by 20 seconds.
In case all three restart attempts fail, the device generates the alarm
No action required, the device autonomously retries the movement up to a maximum of three consecutive times.
The time interval between one attempt and the next is increasing: following the first alarm the device waits a time
Loss of syn-
7
of 1 second before repeating the movement, following the second error the wait before the new movement attempt
chronism
is 10 seconds while on the third alarm the last movement attempt is delayed by 20 seconds.
In case all three restart attempts fail, the device generates the Loss of Synchronism (lock) alarm.
Lack of inter-
8
nal communi-
No action required, device reboots automatically
cation
142
142
Reason
Fan control set above ambient temperature Set to a lower temperature
Blown fuse or open circuit switch
Faulty controller
Defective motor
Reverse impeller rotation direction
Drive belt slipping
Dirty guard
Loosening of fixing screws
Damaged fan
Thermostat set incorrectly
Control set for continuous operation
Abnormal current consumption
possible
actions
that
Solution
Replace fuse or reset switch
Repair or replace the controller
Repair or replace the motor
Check the rotation direction of the impeller
Tension the belt
Clean guard
Check and eliminate any interference
Check the tightness of the screws of the guards, fixed com-
ponents and moving parts
Replace the fan
Set the correct temperature
Set control correctly
- Disconnect the power supply
- Wait 1 minute.
- Visually inspect for any external objects preventing proper
fan rotation and remove if present.
- Reconnect the power supply.
- If the alarm signal has not gone off, contact technical
support.
can
be
taken
when
a
specific
alarm
Saturn ONE
occurs:
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