Connections And Commissioning - Tunstall 77 3400 00 Betriebsanleitung

6.1.1 Output terminals (5) 24 V DC
The power supply unit UPS (77 3400 00) provides a controlled output voltage of
24 V DC, max. 12.5 A. If a load current of approx. 13 A is exceeded, the power
supply unit switches off the output voltage and performs periodic start attempts
until the overcurrent or short-circuit is eliminated.
The power supply unit 6A UPS (77 3400 60) provides a controlled output volt-
age of 24 V DC, max. 6 A. If a load current of approx. 7 A is exceeded, the power
supply unit switches off the output voltage and performs periodic start attempts
until the overcurrent or short-circuit is eliminated.
Connect the load to terminals "+24 V" and "0 V" (provided twice).
6.1.2 Signalling outputs (2) and LED displays (1)
The five signalling terminals 1 – 5 on the 7-pole terminal (2) use potential-free re-
lay contacts to indicate the device status. These contacts may be subjected to a
maximum load of 30 V DC/1 A.
LED lights up
Green
"Output +24 V DC"
Yellow
"Battery active"
Red "Battery low"
Red "Output Fail-
ure Fuse F2"
Tab.2: Signalling outputs and LED displays
1)
At an output voltage of around 20 V, the power supply unit automatically swit-
ches off completely (deep discharge protection).
Power supply unit UPS (77 3400 00), Power supply unit 6A UPS (77 3400 60) – Instruction manual – 00 8802 41, 12/18 (Rev. 11.0)
Status Output voltage
The power supply unit
+24 V DC
is in operation.
Battery operation +20 V
Battery defective,
-
empty or low.
F2 failure. Output fuse
F2 has been removed 0 V
or is defective.

Connections and commissioning

Switched
contacts (NO)
3 – 5
1)
– 24 V DC 3 – 4
3 – 2
3 – 4
│10