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Assembly and Operating Instructions
GU-SECURY Automatic with A-opener
Technical Data Sheet
7
Inspection and maintenance works, replacement parts
GU-SECURY Automatic with A-opener must only be operated with power supply units meeting
the minimum requirements of the lock (see "Technical data" under 4.1)
Any warranty claims for damage caused by non-observance are rejected.
In order to avoid that the mechanical properties of the lock – especially with regard to key, han-
dle, and latchbolt movement – are affected by dirt, it is necessary that the lock is inspected and
lubricated with non-resinous oil at least once a year.
The A-opener itself is maintenance-free.
8
Trouble shooting / Possible causes / Remedies
Motor not running
Cable(s) connected wrongly or not at all, verify connections:
Voltage supply V direct voltage/alternating voltage
brown:
+/~
grey (blue): -/~
black:
+/~ (control voltage for release).
Check transformer and exchange microfuse, if necessary.
Check terminals.
Latchbolts are retracted after activation, however not extended again.
Cable connected wrongly, verify connections:
Voltage supply V direct voltage/alternating voltage
brown:
+/~
grey (blue): -/~
black:
+/~ (control voltage for release).
Milled recess for A-opener too small: driving rod gets jammed or stuck.
The recess must be cut larger.
Motor hums over a longer period of time or
A-opener cannot retract the latchbolts
A-opener not getting enough current, transformer too weak:
Check transformer:
Voltage supply V direct voltage/alternating voltage min. 1 Ampere (1000mA!)
Cables used are too long or too thin: verify cable cross sections:
- up to 10 m – 0.5 mm²
- up to 40 m – 0.75 mm²
- up to 50 m – 1.0 mm²
- up to 75 m – 1.5 mm²
- up to 125 m – 2.5 mm²
Consumers switched in parallel:
Transformer not powerful enough to provide the energy required for A-opener plus
additional consumers connected to it!
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