Characteristics - WEST PAM-199-P-PDP Technical Documentation Manual

2 Characteristics

This module is used for the control of a directional valve with two solenoids or up to two pressure or throttle
valves with one solenoid. Various adjustable parameters allow for an optimized adaptation to the respective
valve. The integrated power amplifier with a short cycle time of 0,125 ms for the current loop is an inexpensive
and space-saving solution.
Controlling the amplifier is realized here via a ProfibusDP interface. Furthermore, this provides changing most
of the parameters via the bus. This device replaces the previous amplifiers PAM-195-P-PDP and PAM-196-P-
PDP. With the parameter FUNCTION the operation mode can be switched.
The output current is closed loop controlled and therefore independent from the power supply and the solenoid
resistance. The output stage is monitored for cable breakdown, is short circuit proof and disables the power
stage in case of an error.
RAMP, MIN and MAX, the DITHER (frequency and amplitude) and the PWM frequency are programmable.
In addition, the valve characteristics can be linearized via 10 XY-points. For example: using pressure valves a
linear behavior between input signal and pressure can be reached.
Typical applications: Control of directional, throttle and pressure valves, which need a flexible adaptation of
the solenoid control. All typical proportional valves of the different manufactures (BOSCH, REXROTH,
PARKER, EATON ...) can be controlled.
Features

Control of directional, pressure or throttle valves

Compact housing

Digital reproducible adjustments

Controlling via Profibus

Parameterization via Profibus

Characteristics linearization via 10 XY-points per direction

Free parameterization of RAMPS, MIN / MAX, PWM, output current and DITHER

Range of the rated output current: 0.5... 2.6 A

Simple and application orientated parameter settings via WPC-software

Failure monitoring and extended function check
Page 7 of 37 PAM-199-P-PDP 05.06.2020