Pyromation Series 642 - Manual (Page 14)

Operation Series 642
14 Pyromation, Inc.
5.2 Local operation
5.2.1 Hardware setting
Fig. 8: Hardware settings via jumpers J1, J2 and J3
NOTICE
ESD - Electrostatic discharge
► Protect the terminals from electrostatic discharge. Failure to observe this may result in
destruction of parts of the electronics.
Jumpers J1, J2 and J3 for the hardware setting are located at the electronics module. To set the
jumper, open the threaded joint of the electronics module (opposite the threaded joint of the
connection compartment) and remove the display if necessary.
Hardware locking the configuration with jumper J1
The hardware setting for configuration locking has priority over the software setting.
Setting the failsafe mode via the hardware with jumper J2
The failsafe mode set via the jumpers only takes effect if the microcontroller fails.
TRANSMITTER SECURITY
ON Configuration locked
OFF Configuration enabled
FAILURE MODE
LO ≤ 3.6 mA
HI ≥ 21.0 mA