SECTION EIGHT – Safety function RESTART INTERLOCK (Optional)
DS2000 USER’S MANUAL (rev.C)
8.9
The Restart Interlock relay of Channel 1 is controlled using the external +24Vdc (pin2 positive
terminal, pin1 0V terminal).
When the RL1A relay is de-energized, the 5-6 pins are closed-circuit and the Restart
Interlock Channel 1 is activated.
If the “Channel 2” is used, the Restart Interlock relay of Channel 2 is controlled using the
external +24Vdc (pin4 positive terminal, pin3 0V terminal).When the RL2A relay is de-
energized, the 7-8 pins are closed-circuit and the Restart Interlock Channel 2 is activated.
If the “Channel 2” is not used, the RL2A relay of “Channel 2” must be always powered using
the external +24Vdc (pin4 positive terminal, pin3 0V terminal).
WARNING: The circuit for auxiliary functions (NO contacts) must be externally protected
against the welding of NO contacts using a delayed fuse rated 2 A or a fast fuse rated 3 A
WARNING: pins 1 and 3 must be connected to the protective bonding circuit against
malfunctions in case of earth faults.
Tab. 8.2 - J2B Connector – Software Channel
See Section 2
8.6 SAFETY RELAYS - TECHNICAL DATA
Input coil
Pnom = 500 mW
Inom = 20.8 mA (±10%)
Vnom = 24 Vdc
Pick-up voltage = 14.4 Vdc
Drop-out Voltage = 2.4 Vdc
Resistance = 1.152 Ω
Vmax = 28.8 Vdc
Contact
Rmax = 30 mΩ @ 6 Vdc, 1 A
Imax = 3 Adc
Vmax = 30 Vdc