SD-BOX INSTRUCTION MANUAL, CODE: DYN 81.01.00
Date: 03/03/2020
Version 00
- 16 -
Outputs
•
The output connected into the SAFETY chain, terminals 4 and 6, is part of two relays in
series which open when an UCM or fault is detected as described above, causing the safety
line to open. If there is no UCM or failure, these contacts will remain closed. If there is a
power cut, the contacts open, thus opening the safety line. If the coil has a fault, the contacts
will also open, once the motor input is deactivated, so the car can complete the travel being
taken when the fault occurs. If the motor is deactivated, it opens immediately if a fault is
found in the coil.
•
SYSTEM FAILURE information, terminals 1-2-3, is a non-safety related signal with a
configurable output to inform the control panel of 2 different options:
A. The relay will change status when one of the aforementioned faults/errors is detected
in “
”. The normally open (NO) 1-3 FAILURE relay
contact will be closed and the normally closed contact (NC) 2-3 will open.
B. The relay will change status according to the coil status: when this is powered, the
normally open (NO) 1-3 FAILURE relay contact will be closed and the normally
closed contact (NC) 2-3 will open.
Overspeed governor connection components
•
The action of the coil releases the overspeed governor and allows its free rotation. If the coil
is not powered, a spring activated system locks the overspeed governor. If there is no power
reaching the coil with the car in motion, the overspeed governor will lock which could engage
the safety gear. This is why batteries must be used to prevent unwanted engagement of the
safety gear if there is a power failure in the lift.
•
An inductive sensor or μSwitch (IND SENSOR), terminal 38 (inductive sensor supply
0 V
DC
),
terminal 49 (detection), terminal 40 (inductive sensor power supply 24 V
DC
). The inductive
sensor
/μSwitch
is a control sensor on the overspeed governor to check the proper operation
of the coil. This signal indicates the overspeed governor is unlocked; the absence of voltage
indicates the overspeed governor is locked.
Important note
The batteries must be connected for proper operation.
Note: This manual displays partial information on the instructions for use and maintenance of this product. Please refer to the customer
area in Dynatech’s website in order to consult the full manual; http://customers.dynatech-elevation.com/
Summary of Contents for SD-BOX
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