9
UK
► Adhere to the installation conditions in accordance with the figures 1 to 4:
80
80
1
20
2
105
80
80
3
280
4
80
7 Electrical connection
Wiring diagram (→ 11 Technical data)
► Disconnect power� Also disconnect any independently supplied relay load
circuits�
► Supply voltage: Connect L+ to pin 1 and L- to pin 3 of the connector�
The nominal voltage is 24 V DC� This voltage may vary between 19�2 V and
30 V incl� 5% residual ripple to EN 61131-2�
In case of a single fault the supply voltage must not exceed 60 V DC
for over 0�2 s up to a max� value of 120 V DC� (This requires the safe
separation between power supply and transformer�)
For unit with cULus approval and the scope of validity cULus:
The device shall be supplied from an isolating transformer having a
secondary listed fuse rated either
a) max� 5 amps for voltages 0~20 Vrms (0~28�3 Vp) or
b) 100/Vp for voltages of 20~30 Vrms (28�3~42�4 Vp)�
