FS160
11
ELECTRONIC OPTIONS for AEB and AES
S
tandard driver execution provides on the 7 pin main connector:
Power supply - 24 V
D
C
must be appropriately stabilized or rectified and filtered; 2,5 A fuse time lag is required in series to each driver
p
ower supply Apply at least a 10000 mF/40 V capacitance to single phase rectifiers or a 4700 mF/40 V capacitance to
three phase rectifiers
R
eference input signal - analog differential input with ±10 V
D
C
n
ominal range (pin D, E), proportional to desired coil current
M
onitor output signal - analog output signal proportional to the actual valve’s coil current (1V monitor = 1A coil current)
Note: a minimum booting time of 500 ms has be considered from the driver energizing with the 24 V
DC power supply before the valve has
been ready to operate. During this time the current to the valve coils is switched to zero.
11.1 Option /I
It provides 4 ÷ 20 mA current reference signal, instead of the standard ±10 V.
Input signal can be reconfigured via software selecting between voltage and current, within a maximum range of ±10 V or ±20 mA.
It is normally used in case of long distance between the machine control unit and the valve or where the reference signal can be affected by
electrical noise; the valve functioning is disabled in case of reference signal cable breakage.
11.2 Option /Q
To enable the driver, supply 24 V
D
C
on pin C referred to pin B: Enable input signal allows to enable/disable the current supply to the solenoid,
without removing the electrical power supply to the driver; it is used to maintain active the communication and the other driver functions when
the valve has to be disabled. This condition does not comply with European Norms EN13849-1 (ex EN954-1).
11.3 Option /Z
It provides, on the 12 pin main connector, the following additional features:
Enable Input Signal
To enable the driver, supply 24 V
DC on pin 3 referred to pin 2: Enable input signal allows to enable/disable the current supply to the solenoid,
without removing the electrical power supply to the driver; it is used to maintain active the communication and the other driver functions when
the valve has to be disabled. This condition does not comply with European Norms EN13849-1 (ex EN954-1).
Fault Output Signal
Fault output signal indicates fault conditions of the driver (solenoid short circuits/not connected, reference signal cable broken for 4÷20mA
input, etc.). Fault presence corresponds to 0 VDC, normal working corresponds to 24 VDC (pin 11 referred to pin 2): Fault status is not affected
by the Enable input signal
Power supply for driver’s logics and communication
Separate power supply (pin 9,10) allow to cut solenoid power supply (pin 1,2) while maintaining active diagnostics, USB and fieldbus communication.
A safety fuse is required in series to each driver power supply: 500 mA fast fuse.
11.4 Option /W - only for valves coupled with pressure compensator type HC-011 or KC-011 (see tab. D150).
It provides, on the 12 pin main connector, the above option /Z features plus the hydraulic power limitation function.
The driver receives the flow reference signal by the analog input INPUT+ and a pressure transducer, installed in the hydraulic system, has to
be connected to the driver’s analog input TR.
When the actual requested hydraulic power pxQ (TR x INPUT+) reaches the max power limit (p1xQ1), internally set by software, the driver
automatically reduces the flow regulation of the valve. The higher is the pressure feedback the lower is the valve’s regulated flow:
Flow regulation = Min
(
PowerLimit [sw setting]
; Flow Reference [INPUT+]
)
Transducer Pressure [TR]
For detailed information on hydraulic power limitation, see tab. GS115
11.5 Option /C - only in combination with option /W
Option /C is available to connect pressure transducer with 4 ÷ 20 mA current output signal, instead of the standard 0 ÷ 10V .
Input signal can be reconfigured via software selecting between voltage and current, within a maximum range of ±10 V or ±20 mA.
11.6 Possible combined options: /IQ, /IZ, /IW, /CW and /CWI
9
HYDRAULIC OPTIONS
9
.1 Option /B
D
HZO-05 and DKZOR-15: solenoid and integral electronics at side of port A of the main stage.
DHZO-07 and DKZOR-17: integral electronics at side of port A of the main stage.
9
.2 Option /Y
External drain advisable when the valve is used in double flow path, see section 7.5. Option /Y is mandatory if the pressure in port T exceeds 210 bar.
10
OPTIONS for -A
10.1 Coil voltage
O
ption /6 optional coil to be used with Atos drivers with power supply 12 VDC
O
ption /18 optional coil to be used with electronic drivers not supplied by Atos
10.2 H
and lever
T
his option is available only for DHZO-A with spool type S3, S5, D3, D5, L3, L5.
I
t allows to operate the valve in absence of electrical power supply. For detailed description of DHZO-A with hand lever option see tech. table E138
Option /MO horizontal hand lever Option /MV vertical hand lever
O
ption /BMO horizontal hand lever installed at side of port A Option /BMV vertical hand lever installed at side of port A
The following supplementary options allow to operate the valve in absence
o
f electrical power supply by means of a micrometric screw replacing the
standard solenoid manual override, see tech. table TK150
O
ption /N manual micrometric adjustment
O
ption /NV as /N plus handwheel and graduated scale
O
ption /N
O
ption /NV
C
H 10