INFO
Note that there is no software compensation for the wire length to the resistance input. Create a custom curve for the
analogue input to adjust for errors due to wire length.
INFO
If you use a resistance input as a supervised binary input, then the maximum circuit resistance is 330 Ω.
13.9.13 Relay output characteristics
EIM3.1 has three ordinary relay outputs (terminals 3,4, terminals 5,6; and terminals 7,8).
More information
See Hardware characteristics and configuration, General characteristics, Relay output characteristics and
configuration for more information.
13.9.14 Relay output with wire break detection characteristics
There is one relay with wire break detection on EIM3.1, that is, terminals 9,10.
CAUTION
The wire break detection uses a small constant current for wire break detection. The wire break detection current can
activate small relays, and cannot be turned off.
More information
See Wiring for the hardware modules, Engine interface module EIM3.1, Relay output with wire break detection in
the Installation instructions for examples of relay wiring and more information about the wire break detection current.
More information
See Hardware characteristics and configuration, General characteristics, Relay output characteristics and
configuration for more information.
13.9.15 EIM3.1 # relay 4 wire break alarm
This alarm is for EIM3.1 # relay 4 (terminals 9,10) wire break detection (where # is 1 to
3). The wire break monitoring is only active when the relay is de-energised.
Relay 4 can be configured for any digital output function, for example, Stop coil. This
alarm then acts as stop coil wire break detection.
Hardware:
EIM 3.1
Configure the parameters under Configure > Parameters > Hardware > EIM3.1 # > Relay 4 supervision.
Table 13.35
Default parameters
Parameter Range EIM3.1 # relay 4 wire break
Delay 0 s to 1 h 1 s
Enable Not enabled, Enabled Not enabled
Action Warning
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