Variotech ENA3 User Manual

Manual and data sheet for
ENA3 UCM Control
ENA3 UCM Control Manual Version 1.3 Date: 21.04.2017 page 11 of 12
Variotech GmbH, Gewerbeweg 5, 2230 Gänserndorf, Tel +43 2282 60310, https://variotech.com
• The feedback contacts of the brake actuator must be wired and evaluated properly, otherwise the
safety control would also shut down during the plausibility check.
Self-test of outputs:
• On power supply or after a reset, ENA3 performs a self test for the first 5 times when the car is in a
door zone with open safety circuit . After the first 5 trips the self-test is carried out periodically each
20th time.
The relays R1, R2, R3 switch during a test.
o With an open safety circuit (door opens) the test is carried out after about 3 seconds
o With a closed safety circuit the test is not performed
On a new drive the relay R4 switches quickly on/off upon exiting the door zone.
In case of pre-opening of doors it must be ensured that the brake has already fallen before the self-
test is performed.
• Disruptions of the peripheral wiring lead to the shutdown of the lift.
• Errors while switching of safety relay lead to the shutdown of the lift.
Display the type of error:
The ENA3 safety control detects different types of errors. It saves them and displays (report) them
visually and acoustically.
Only by pressing the ENA3 reset button it is possible to clear errors.
• Actual UCM error (unintended car movement).
If the lift is not in the door zone such an error will result in immediate shutdown of the lift.
ENA3 displays the error by 2-time blinking of the LED and peeping of the buzzer.
• Errors of the UCM-brake actuator or feedback contact.
This error will result in an immediate shutdown of the lift in the door zone.
ENA3 displays the error by 3-time blinking of the LED and peeping of the buzzer.
• Error in the microprocessor or in the electronic circuit.
This error will result in an immediate shutdown of the lift in the door zone.
ENA3 displays the error by 4-time blinking of the LED and peeping of the buzzer.
• Malfunction in the control or within an output relay.
This error will result in an immediate shutdown of the lift in the door zone.
ENA3 displays the error by 5-time blinking of the LED and peeping of the buzzer.
Cause of error
Error code
Troubleshooting
Actual UCM error UCM
2-time blinking of the LED
µP and peeping of a buzzer
Push ENA3 Reset button
Errors of the UCM-brake
actuator or feedback
contact
3-time blinking of the LED
µP and peeping of a buzzer
Check the brake actuator and the feedback
contact
Then push ENA3 Reset button
Error in the
microprocessor or in the
electronic circuit
4-time blinking of the LED
µP and peeping of a buzzer
Push ENA3 Reset button
If the error occurs again you have to
change the control unit
Error in the control or
within an output relay
5-time blinking of the LED
µP and peeping of a buzzer
Check the power supply of 24VDC!
Then push ENA3 Reset button.
If the error occurs again you have to
change the control unit.
Error of the magnetic
switches
6-time blinking of the LED
µP and beeping of the
buzzer
Check the magnet switches and if they
were installed correctly. Both magnetic
switches must always switch
simultaneously.
Error-Reset:
It is not possible to bring the unit back in operation (reset) by switching on and off the supply voltage.

Variotech ENA3 Specifications

General

Brand	Variotech
Model	ENA3
Category	Controller
Language	English