Interfaces and software update
Chapter 6
OPERATION MANUAL
V2.3.0en/22.04.20//17.12
Heat Transfer Station eo
67
Pin
Description
Signal
5
Current output, freely programmable
0
a)
/4 - 20 mA or 0 - 10 V
If using 0 - 10 V, integrate a
500 Ω resistor.
6
GND for analog input
GND
a)
Consult with our Customer Support.
6.3.4
Jack ECS (External Control Signal) standby
Enable signal
ECS
(external control signal) for starting/stopping the temperature control process.
Activation via a potential-free contact. Contacts 1 and 3 are internally bypassed.
ECS
is energized
when E1 and E2 are connected by an external floating contact. Contact specification: min. 0.1 A /
24 V DC.
The functionality of the
ECS
is determined via the “Interfaces” category.
The following variants are offered:
▪
“No Action”:
Switching the contacts open/closed or closed/open has no effect.
▪
“Switching to second setpoint”:
A change from a closed to an open contact replaces the set
setpoint with the value of the second setpoint. This altered setpoint is not fixed to the second
setpoint but can be changed by the operator at the temperature control unit at any time. A
change from an open to a closed contact does not cause any change and the temperature control
process is not reset to the original setpoint.
▪
„2. setpoint selective”:
An open contact causes a thermoregulation to its original setpoint. A
closed contact causes a thermoregulation to the second setpoint.
▪
“Internal / Process”:
If the contact is open, the device-internal temperature sensor is used for
control. If the contact is closed, the additionally connected external temperature sensor is used
for control. Switching the contacts open/closed or closed/open switches between these two tem-
perature sensors.
▪
“Temperature control on/off”:
The temperature control process starts when switching from an
open to a closed contact. The temperature control process switches off when switching from a
closed to an open contact.
▪
“Release”:
The temperature control process switches off, if the temperature control process is
active and the contact is switched from closed to open. The temperature control process is
not
switched on
, if contact is further switched from open to closed!
▪
“Reset Messages”:
All messages in the Pilot ONE are reset (if possible) if the enable signal chang-
es from “open” to “closed”. Resetting is delayed in the event of a fault until the temperature con-
trol unit is in stand-by mode. Messages can be reset as often as required, but faults can be reset
only 3 times.
▪
“Program 1 Start/Stop”:
The temperature control program 1 is started if the enable signal chang-
es from “open” to “closed”. The temperature control program is stopped when changing from
“closed” to “open”.
▪
“Fill level alarm”:
When switching from closed to open contact, an alarm is triggered if the fill
level is too low. For this purpose, a level sensor must be connected and placed in the
> sight
glass<
[23] or in the external application.
▪
“Fill level warning”:
When switching from closed to open contact, a warning is generated if the fill
level is too low. For this purpose, a level sensor must be connected and placed in the
> sight
glass<
[23] or in the external application.
The interface is specified as a digital input. Do not apply voltage or current.
Pin assignment (front
view)
