gefran 650 Installation And Instruction Manual page 13

1.1. Profile
650
The 650, 1250 and 1350 controllers are a family of devices
designed to control temperature in industrial processes and
to manage the positioning (without feedback) of motorized
valves.
The 3 devices have the same main characteristics and the
same range of functions. They differ in size (1/16, 1/8 and 1/4
DIN), the amount of information shown on the display, and
the maximum number of digital inputs.
The displays show the process and setpoint values, plus
multilingual scrolling messages for diagnostics, alarms and
process state.
On models 1250 and 1350, a segmented bar graph shows
percentages of power, delivered current or valve position.
Configuration/local operation is done with keys (4 on the 650
and 1250, 6 on the 1350), to which dual-function LEDs are
associated: feedback for pressed key and guide for permit-
ted operations.
Commissioning is simplified by guided configuration for ma-
nual-free programming, with just a few indispensable para-
meters accompanied by inline help messages.
The configuration can be cloned among controllers without
having to switch on the power supply thanks to the Zapper,
a battery-operated portable mini-configurator (to be ordered
separately).
With GF_eXpress software and PC, you can program the ex-
tended configuration, create work recipes and update the
firmware without having to switch on the controllers.
Thanks to the Smart Configurator function, you obtain the
required parameter recipe by answering a few simple que-
stions.
80208G_MHW_650-1250-1350_01-2017_ENG
1. GENERAL DESCRIPTION
1250
1. GENERAL DESCRIPTION
The initial parameters can always be reset, both from the
keypad and from the GF_eXpress software.
The devices offer complete diagnostics (broken or incorrect
connection of sensor, total or partial load break, off-scale of
variables and control loop faults), operation count, settable
alarm limits (useful for scheduling preventive maintenance),
and an internal energy counter to totalize energy consump-
tion and cost to achieve continuous control.
Sixteen AND, OR and Timer Function Blocks let you create
customizable logic sequences for complete and flexible ma-
chine control.
The controller's HW resources are exploited completely, wi-
thout any need for external devices such as timers and small
PLCs.
Tuning is performed via advanced algorithms that ensure
stable and accurate adjustments, even with critical or very
fast heating systems, and that engage automatically when
necessary.
Models with twelve ramp and hold steps, groupable in four
programs, with enable inputs and event outputs, are avai-
lable for applications with setpoint profiles.
The controller can be configured directly with the keys or
graphically via GF_eXpress software.
Maintenance of the system in which the device is installed
is made easier by the ability to replace the controller at any
time simply by removing it from the faceplate.
No additional steps are needed.
1350
11