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3.5 Relay circuit board
The relay board has three additional relays
with potential free break/make contacts (con-
tact load 250 VAC/8 A) for switching or con-
trolling of additional functional units or
options. A maximum of 2 relay boards can be
installed. When 2 boards are in use, different
CAN bus addresses must be set (see fig.
below).
3.5.1 Connections on the relay board
3.5.1.1 Customer-side computer
interfaces
Inputs
ST05:
•
Configurable digital input 12 VDC
Outputs
ST02:
•
Potential free break/make contacts NC
and NO, programmable
ST03:
•
Potential free break/make contacts NC
and NO, programmable
ST04:
•
Potential free break/make contacts NC
and NO, programmable
3.5.1.2 System-side interfaces
ST1.1:
•
4-pin screw / plug connection for the
connection of L1 and N and the inter-
lock (safety) system
ST1.2:
•
Loop-through of ST1.1
ST08:
•
+12 V, GND, CAN bus
ST07:
•
Loop-through of ST08
ST
04
ST03
ST02
ST1.1
ST07
ST1.2
ST08
ST05
DIP switches
*)
The DIP switches serve for CAN bus address setting. They are factory preset according to the unit configuration.
On
1
2
On
1
2
Relay board 1
Relay board 2
Off
Off
Off
On
*)
*)
