Siemens SINUMERIK 840D Description Of Functions page 147

04.00
02.99
Power enable
5530 CYLINDER_SAFETY_CONFIG
Safety configuration
Bit 0= 0: Without shutoff valve
1: With shutoff valve
Bit 1= 0: Central shutoff valve
1: Axis-specific shutoff valve
Bit 2= 0: No valve spool checkback
1: Valve spool checkback available
Bit 3= 0: Velocity controller disable with power disable (PD)
1: Velocity controller disable without power disable (PD)
Bit 4= 0: Servo solenoid valve supply switched off at PD with
switchoff valve (no meaning without switchoff valve)
1: Servo solenoid valve remains switched on at PD with
switchoff valve (no meaning without switchoff valve)
(PD 8 Power disable)
Unit: Default:
HEX 4
5531 OUTPUT_ENABLE_DELA Y
Manipulated variable enable delay
Unit: Default:
ms 300
 Siemens AG 2000. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital Descr. of Functions HLA Module (FBHLA) – 04.00 Edition
The power enabling command (corresponding to pulse enable on an electrical
drive) can be issued and/or cancelled via the following paths:
S
Term. 63 (central power enable)
S
Term. 663 (module-specific power enable)
S
Control word (from NC)
S
Error (ZK1, watchdog)
Minimum: Maximum:
0 31
Minimum: Maximum:
0 500
The manipulated variable delay time is the time which the velocity controller
enable continues to disable after the power enable delay time (MD 5532) has
expired. This delay time is needed to allow the shutoff valve to open or, in sys-
tems without shutoff valve, to allow the valve spool to change from fail-safe to
zero position.
Switching of the shutoff vavle supply
If a shutoff valve is parameterized in MD 5530 (bit 0 or bit 1 = 1) and the supply
voltage of the servo solenoid valve is to be switched off when the power is dis-
abled (MD 5530 bit=0), the manipulated variable delay time (MD 5531) is the
time it takes until the voltage supply of the servo solenoid valve is interrupted.
The shutoff valve can be closed during this period.
Operating sequence for PE (power enable) (ext. 24 V supply available, con-
trollers enabled):
S
24 V supply for servo solenoid valve is switched on immediately (if it is not
already connected).
S
If 24 V supply for servo solenoid valve was available, then 24 V supply for
shutoff valve is switched on immediately, otherwise it is not switched on until
power enable delay period has run down.
S
After the 24 V supply for the shutoff valve has been switched on, the status
word "Velocity controller enable" is not set until the manipulated variable
enable delay has run down.
4 Firmware Drive Functions
4.12 Terminals
Cross ref.: –
Relevant for: Protection level:
HLA 3/3
Data type: Effective:
UNS.WORD Immediately
Cross ref.: –
Relevant for: Protection level:
HLA 3/3
Data type: Effective:
UNS.WORD Immediately
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