Curtis Instruments has added an
upgrade to its Curtis AC motor
speed controller family. New E
Series controllers use
powerful dual-microprocessor
logic cores
that meet all relevant
requirements of the
EN ISO 13849-1:2009
functional safety standard,
and the updated EN 1175-
1:1998+A1:2010 industrial truck
safety standard, in place since
January 1st 2012.

The first in the Curtis E Series is
the model 1232E for AC induction
motors which offers high levels of
functional safety. It is designed for
use as the traction controller on class
3 materials handling ‘walkie’ vehicles
and other small battery-powered
industrial trucks. It is also suitable as
the pump controller for auxiliary
hydraulic functions on larger
industrial vehicles.

Improvements over the
Model 1232 include:
Powerful dual-micro logic
core that ensures full
compliance with EN ISO 13849-1;
faster 64MHz micro improves motor
control, and more than doubles the
VCL code execution speed for
enhanced safety; and additional
FLASH memory that gives twice the
available VCL code space.