Variotech ENA3 User Manual

Manual and data sheet for
ENA3 UCM Control
ENA3 UCM Control Manual Version 1.3 Date: 21.04.2017 page 9 of 12
Variotech GmbH, Gewerbeweg 5, 2230 Gänserndorf, Tel +43 2282 60310, https://variotech.com
This is the signal for an UCM fault. The piezo buzzer beeps additional to the LED in the same rate.
• Check disconnection of safety circuit terminals (terminals 14, 15) and terminals of the brake
actuator (terminals 16, 17).
UCM-error-reset:
Pressing the reset button on the control board of the safety control clears the error and the lift should
be back in operation mode, as far as the UCM-brake actuator does not require additional steps.
(release safety gear, etc.)
The error cannot be deleted by switching the device off and on.
Diagnostic-input
The function of the UCM-brake actuator or UCM-safety valve is monitored by a diagnostic switch.
The contacts of this switch have to be connected to the diagnostic input of the ENA3 control.
A LED (FB) indicates the correct function.
When multiple switches on the brake actuator are monitored and included, multiple normally closed
contacts can be connected in series or normally open contacts can be connected parallel.
The diagnostic function of the switch can be simulated:
The ENA3 control has a LED (FB) which indicates the correct function of the unit.
If the UCM-brake actuator (brake, overspeed governor, safety valve, etc.) is in non-operating state
(lift stands still with activated brake actuator) the LED “FB” is on.
If the brake actuator is released, the LED switches off.
If there are dual circuit brakes, the function of the diagnostic switch is checked by releasing one part of
the brake. The LED must switch off and by releasing of the part brake the LED should go on again.
The second part of the brake should be tested too.
The instructions of the manufacturer of the UCM-brake actuators must be observed for proper testing
of the diagnostic switch.
The diagnostic switch can be configured as NO or NC contact:
Version: diagnostic switch is a normally closed contact (NC)
Diagnostics switch (NC) on terminal 5 and 6, terminal 4 stays free permanently.
Diagnostic switch as NC contact
Diagnostic switch
LED “FB”
Lift stands still,
UCM-brake actuator in non-operating state
Terminal 5 and terminal 6 are
connected by switch
lighted *
Lift moves
Terminal 5 and terminal 6 are not
connected by switch (because NC)
off
testing of the diagnostic switch,
then give a lift call
Wire from terminal 5 (or terminal 6)
must be disconnected.
off
After the end of drive the function of the
diagnostic switch is tested by ENA3 control.
LED “µP” flashes 3 times
Buzzer beeps 3 times.
off
The ENA3 control detects the error and switches off, thereby the lift is out of service.
Connect wire on terminal 5 or terminal 6 again.
Switch on the device again by pressing the reset-button.
Version: Diagnostic switch is a normally open contact (NO)
Diagnostics switch (NC) on terminal 4 and 5, make a permanently bridge from terminal 5 to terminal 6.

Variotech ENA3 Specifications

General

Brand	Variotech
Model	ENA3
Category	Controller
Language	English