Instruction manual
IMP IMP/P Hot Runner Controllers Instruction Manual
9
User’s Selected
Jumper Option
1. For degree Celsius operation, install
shunt on PC board marked J1
(marked C on newer models)
2. For 120 Vac input operation, install
the 2 jumpers on the PC board as
shown.
3. For 240 Vac input operation,
install the 1 jumper on the PC
board as shown.
Note: If units are factory wired for 240 Vac,
remove 240 V jumper prior to installing a
120 V jumper.
SafeChange
™
Hot Swap Feature
Controllers are shipped with SafeChange
disabled, because the controller will not
work if the SafeChange feature is enabled,
but the mainframe does not support
SafeChange. You can enable SafeChange
quickly and easily using a jumper as
described in this section.
Basic set up choices are made using DIP
switches as described in this section. The
switches in a Series IMP Hot Runner
controller are set at the factory for J thermo-
couple as the input type, with Fahrenheit as
the unit of measure for North America, and
Celsius for other shipping destinations.
1. Checking Mainframe for
SafeChange Capability
Do not enable SafeChange unless
the mainframe supports this feature.
To check the mainframe for
SafeChange capability:
a. Turn off power to the mainframe.
b. Remove a blanking panel or a
controller that is OFF, so you can
look into the mainframe.
c. Look at the lower connector block
on the backplane.
1) If a metal clip is in the third
position from the top in the
connector block, then the
mainframe supports
SafeChange. SafeChange
should be enabled on the
controller before installing it in
the mainframe to reduce the
possibility of damage to
the controller.
Use of the SafeChange feature does
not eliminate the need for careful
installation and removal of controllers.
Always turn off power to the controller
and the mainframe when installing or
removing a controller.
J1
Jumpers, follow
steps 2 & 3










