Meanings Of The Signals Under "Dsp - HEIDENHAIN iTNC 530 Service Manual

7.2

Meanings of the Signals under "DSP"

Controller specific
Signal
External enabling signals
Control-is-ready
acknowledgment
(–NE1)
Drive enabling
(–NE2)
Powerfail
MC ready (–WD)
Powerfail (ZK)
Powerfail (AC)
Internal enabling signals
CC controller
ready
May 2006
Meaning
The signal NE1 (emergency stop input 1,
MC) is active if a 0-level is present (low
active). For the iTNC 530 the
corresponding input is located at
connector X42/I3 (PLC input), and is
looped to the MC as a hardware line.
The signal NE2 (emergency stop input 2,
CC) is active if a 0-level is present (Low
active). For the iTNC 530 the
corresponding input is located at
connector X42/I32 (PLC input), and is
looped to the CC as a hardware line.
The PF signal shows the status of the
"effective" powerfail signal for the drive
controller. The signal results from gating
the PF.PS.ZK (powerfail dc-link) and
PF.PS.AC (AC fail). The gating can be set
via machine parameter and via PLC.
This signal shows that the MC is ready for
control. This signal is a possible reason
that the power module was switched off
via SH1.
The signal is generated at the inverter,
and is led via the supply bus to the drive
controller. The input at the drive controller
is displayed. Depending on the wiring,
either this signal or Powerfail (AC) is
relayed on the controller PCB to the
powerfail signal.
The signal is generated at the inverter,
and is led via the supply bus to the drive
controller. The input at the drive controller
is displayed. Depending on the wiring,
either this signal or Powerfail (ZK) is
relayed on the controller PCB to the
powerfail signal. Powerfail (AC) does not
exist for all supply units (e.g., not UV 130).
If no error is present in the drive controller
and the CC was started, "ready for
control" is reported.
Colors
Gray: No information about the
signal available
Green: Signal is not active, enable
Red: Signal is not active, no
enabling
Gray: No information about the
signal available
Green: Signal is not active, enable
Red: Signal is not active, no
enabling
Gray: No information available
Green: Enable PF not active
(1-level)
Red: PF is active (0-level), the dc-
link voltage has decreased below
a permissible (inverter-specific)
level or the phase monitoring
responded; no enabling
Gray: No information available
Green: Enable ME not active
(1-level)
Red: Do not enable: WD1 is active
(0-level), the MC's watchdog is
not retriggered. This signal is
transmitted as SH1 to the inverter
(SH1 can also be generated by
other signal sources).
Gray: No information available
Green: Enable Powerfail (ZK) is
inactive (1-level)
Red: Do not enable: Powerfail (ZK)
is active (0-level), the dc-link
voltage has decreased below a
permissible level (inverter-
specific).
Gray: No information available
Green: Enable Powerfail (ZK) is
inactive (1-level)
Red: Do not enable: Powerfail
(AC) is active (0-level), phase
monitoring responded, at least
one power supply phase failed.
Gray: No information about the
signal available
Green: Enable, CC is ready for
control
Red: Do not enable
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