Maintenance; Troubleshooting - Parker Lucifer EPP4 Einbau Und Einstellanleitung

Bulletin 408128 R03 – 14.06.2016
EPP4 Pressure Regulator
EPP4 SETTING INSTRUCTIONS
The EPP4 regulators are fully adjusted and quality controlled at the factory to obtain standard specifications.
Here are the main factory settings:
Control signal U output
calibration calibration
0-10V or 0-10bar
4-20mA 0-10V
0-10bar
Control signal:
0 to 10 Volt or 4 to 20mA corresponding to an output pressure range of, for example, 0 to 10 bar.
(1V / 1 bar or 5,6mA / 1 bar)
0.0 1.0 2.0 3.0
V
mA 4.0 5.6 7.2 8.8 10.4 12.0 13.6 15.2 16.8 18.4 20.0
0.0 1.0 2.0 3.0
bar
REGULATION
Hysteresis:
50mbar. This value is adjusted in order to obtain an inaudible correction of the two 2-way solenoid pilots when there is
no change of the control signal.
Forced exhaust:
The EPP4 regulator is equipped with an electronic safety circuit which automatically drops the output pressure at 0 bar
when the control signal is below 50 mV or 4.1 mA.
For safety reasons, it is recommended to reset the control signal at 0 bar before re-connecting the supply voltage
(24VDC).

MAINTENANCE

The EPP4 does not require any maintenance. However the quality of used air should be checked periodically.
Use current product to clean EPP4.
TROUBLE SHOOTING
Without removing the EPP top cap:
Record : - EPP type
- Manufacturing date
- Input pressure
Check : - Ports thread (P, A, R) quality
- Correct contact plastic cover / regulator body
- Correct pins level / position in the M12 plug
- Pilot exhaust orifice
TROUBLE SHOOTING
Problem
Unexpected behaviour
For other problems
I output Alarm
calibration Logic
0-10bar
4-20mA negative
4.0 5.0 6.0 7.0 8.0 9.0 10.0
4.0 5.0 6.0 7.0 8.0 9.0 10.0
5
5
Instructions de Montage, Mise en Service & Maintenance
Alarm Alarm
Error+ Error- Delay ON
0.5 bar 0.5 bar
Procedure
Basic electrical controls See paragraph Electrical connections
Basic pneumatic controls See paragraph Port connections
Shut down 24 VDC. Wait 10 sec. Turn on 24VDC
Check the PLC signal
Contact your agent.
Part Mo. 496495
Alarm Alarm
Ton min Delay OFF
0 0
Parker Hannifin Manufacturing Switzerland SA
Fluid Control Division Europe
CH-1227 Carouge-Genève
Alarm
0