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14.3.
Terminal assignment for cable gland - process
controller Type EP 501 C
→
First connect the process controller as described in chapter "14.2. Terminal assignment for cable gland -
positioner Type EP 501"
14.3.1. Terminal assignments of the process actual value input
Input.type*
Terminal Configuration
4 – 20 mA
- internally
supplied
GND
4 – 20 mA
- externally
supplied
Frequency
- internally
supplied
GND
Frequency
- externally
supplied
Pt 100
(see infor-
mation
below)
* Can be adjusted via software (see chapter"20. Start-up sequence").
Table 13:
Terminal assignments of the process actual value input
Connect the Pt 100 sensor via 3 cables for cable compensation reasons.
It is essential to bridge terminal 3 and terminal 4 on the sensor.
When the operating voltage is applied, the process controller is operating.
→
Now make the required basic settings and actuate the automatic adjustment of the process controller. The
procedure is described in chapter "20. Start-up sequence".
44
1
+24 V transmitter input
2
Output from transmitter
3
Bridge to GND (Terminal GND
from operating voltage)
4
not used
GND from operating voltage
1
not used
2
Process actual +
3
Process actual –
4
not used
1
+24 V sensor supply
2
Clock input +
3
not used
4
Clock input –
GND from operating voltage
1
not used
2
Clock input +
3
not used
4
Clock input –
1
not used
2
Process actual 1 (Power supply)
3
Process actual 3 (GND)
4
Process actual 2 (Compensation)
Typ EP 501
Installation
On.the.device.side
External.circuit
1
2
Transmitter
GND
3
GND
2
+ (4 – 20 mA)
3
GND 4 – 20 mA
1
+24 V
2
Clock +
4
GND
Clock – (GND)
2
Clock +
4
Clock –
2
3
4
Pt 100
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