RKC INSTRUMENT PF900 User Manual

6. PROGRAM CONTROL
IMR02L04-E3
6-9
6.5 Hold (HOLD)
Progress of the program is suspended during the Program control operation.
Start or release HOLD function by using the key operation, Digital input (DI) or communication.
 HOLD display
In HOLD state, “HOLD” and the Segment remaining time will alternate on TIME monitor display.
 Key operation
To switch to HOLD state, press the HOLD key during Program control operation.
To continue Program control operation, release HOLD by pressing the HOLD key.
It is possible to produce the HOLD signal from OUT2, OUT3 or DO. (DO5 to DO12: optional)
HOLD state remains in effect when changing to the Fixed set point control mode (FIX) or the
Manual control mode (MAN). To release HOLD state, switch the operation mode to the Program
control mode (RUN).
Key operation or communication is not available for releasing the HOLD state conducted by using
Digital input (DI).
The program is in HOLD state when performing Autotuning (AT) during Program control
operation. “
HOLD” is not displayed at TIME monitor display. Restart Program control operation
after completing AT.
HOLD function is operative when the remaining time of the Pattern end output is displayed. When
the operation is in HOLD state, time counting of the remaining time is suspended but Pattern end
output remains ON. HOLD function is invalidated when the remaining time of the Pattern end
output is zero (0).
For HOLD function by Digital input (DI), refer to  Hold (HOLD) function of 6.1.9 Digital
input (DI) of the PF900/PF901 Instruction Manual (IMR02L03-E) on the CD-ROM.
For Digital output (DO) in HOLD state, refer to 6.2.2 Digital output (DO) assignment (DO1 to
DO12)
of the PF900/PF901 Instruction Manual (IMR02L03-E) on the CD-ROM.
Time
Level
HOLD start point:
Program progress is put on hold and operation
continues in the segment level at HOLD start point.
HOLD release point:
Restart the program on hold
at HOLD start point.
Program pattern
Segment level
at HOLD start
Program pattern when HOLD
function is not ON.
HOLD start condition
 Operation is in Program
control mode (RUN).
 DI being assigned with
Reset mode (RESET) is
open.
 DI being assigned with
Program control mode
(RUN) is open.
HOLD release condition
 DI being assigned with
Reset mode (RESET) is
open.
 DI being assigned with
Program control mode
(RUN) is open.
Progress of program
is on hold.
PV/SV monitor
PV
00028 $
TM SV
5 30:00000200
PV/SV monitor
PV
00 28 $
TM SV
5 HoLD000200
Displays
in turn.

RKC INSTRUMENT PF900 Specifications

General

Brand	RKC INSTRUMENT
Model	PF900
Category	Controller
Language	English