Technical data
vacon • 71
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
7
A
RS485
Differential receiver/transmitter
Set bus termination with dip switches (see page 49).
Default: but termination disconnected.
B
RS485
Table 35. Technical information on Relay and thermistor terminals.
Relays
Relays with two change-over contact (SPDT) and a PTC thermistor input.
5.5 mm isolation between channels.
Terminal
Signal
Technical information
21
Relay output 1
*
*
If 230VAC is used as control voltage from the output relays, the control circuitry must be powered with a
separate isolation transformer to limit short circuit current and overvoltage spikes. This is to prevent
welding on the relay contacts. Refer to standard EN 60204-1, section 7.2.9
Switching capacity
24VDC/8A
250VAC/8A
125VDC/0.4A
Min.switching load
5V/10mA
22
23
24
Relay output 2*
Switching capacity
24VDC/8A
250VAC/8A
125VDC/0.4A
Min.switching load
5V/10mA
25
26
28
Thermistor input
Rtrip = 4.7 k
Ω
(PTC); Measuring voltage 3.5V
29
Table 34. Technical information on standard I/O terminals.
Standard I/O
Terminal
Signal
Technical information