Analog Inputs - Trane TR1 6002 Installation And Operation Manual

Analog Inputs

Two analog inputs for voltage signals, terminals 53 and 54, and an
analog input for current, terminal 60, are provided for reference and
feedback signals. A thermistor can be connected to the voltage inputs,
terminals 53 or 54.
The two analog voltage inputs can be scaled over the range of
0 to 10 V DC. The current input can be scaled over the range of 0
to 20 mA.
The table below shows the possible analog input programming.
Parameter 317, Time Out, and Parameter 318, Function After Time
Out, allow activation of a time-out function on all analog inputs. If the
signal value of the reference or feedback signal connected to one of the
analog input terminals drops below 50% of the minimum scaling, the
function set in parameter 318, Function After Time Out, will be
activated after the time-out set in parameter 317.
Analog Inputs
53 (Voltage)
308 Terminal 53, Analog Input Voltage
60 (Current)
(AI [V] 53 FUNCT.)
Function:
This parameter is used to select the required function to be linked to
terminal 53.
Description of choice:
No operation. Selected if the drive is not to react to signals connected
to the terminal.
Reference. Selected to enable change of reference by means of an
analog reference signal. If reference signals are connected to several
inputs, these reference signals will be summed.
Analog Inputs
Value:
No operation (NO OPERATION)
Reference (REFERENCE
Feedback (FEEDBACK)
Thermistor (THERMISTOR)
✭ I
ndicates factory default setting. Numbers in brackets [ ] represent selection as displayed on the serial bus.
Terminal Number
54 (Voltage)
Terminal Number
Parameter
Feedback. If a feedback signal is connected, a voltage input may be
connected to either terminal 53 or 54, or a current input conected to
terminal 60. If a two zone PID control is used, the feedback signals must
be voltage inputs and applied to terminals 53 and 54. See Feedback
Handling.
Thermistor. Selected if a thermistor in the motor stops the drive in case
of motor overtemperature. The cutout value is 3 kohm. A Klixon thermal
switch may also be connected to this input. If parallel sensors are used,
the thermistors/thermal switches can be connected in series. The drive
will shut down when the total resistance exceeds 3 kohms.
When a thermistor is mounted in motor wiring,
a breakdown of insulation between thermistor
and motor can feed high voltage back to drive
control terminals. To comply with protective
extra-low voltage
requirements, if applicable, thermistor must be
mounted externally.
Parameter 117, Motor Thermal Protection, must be programmed for
Thermal Warning or Thermistor Trip, and the thermistor must be
inserted between terminal 53 or 54, analog voltage input, and terminal
50, 10 V supply.
53 54
308 311
★[0] ★[0]
[1] [1]
[2] [2]
[3] [3]
NOTE
(PELV) grounding
60
314
[0]
★[1]
[2]
55