RKC INSTRUMENT GZ900 Quick Operation Manual


Quick Operation
Temperature Controller
GZ400/GZ900
Manual
IMR03D02-E1
All Rights Reserved, Copyright  2019, RKC INSTRUMENT INC.
Thank you for purchasing this RKC product. In order to achieve maximum performance and ensure
proper operation of the instrument, carefully read all the instructions in this manual. Please place
the manual in a convenient location for easy reference. This manual descries basic key operations
of the GZ400/900.
For detailed handling procedures and key operations, refer to separate
GZ400/GZ900 Instruction Manual.
The manual can be downloaded from the official RKC website:
https://www.rkcinst.co.jp/english/download-center/
Notes for the display
GZ400/900 are available in two types: single input type and dual input type.
The dual input type is further categorized into two types: Dual PV type and PV + Remote
setting type.
For a dual input model, the same parameter may exist in both Input 1 and Input 2.
"1." or "2." is added to the top of the parameters for identification.
Input 1_Set value (SV) Input 2_Set value (SV)
1. 8 8SV 2. 8 8SV
Display example
of the dual input
0 0
type
"1." is not added to the top of the parameters list for the single input type.
Set value (SV)
Display example
1. 8 8SV
of a single input
type
0
This manual uses the dual inputs for explanation. For other types such as a single input
type, ignore the first character "1." at the top of the parameter.
[Notation in this manual]
Parameter shown
1. 8 8SV
This part is not displayed
only on the dual
on the single input type.
0 input type

2. CHANGING SET VALUE

 The flashing digit indicates which digit can be set. Press MODE
key to go to a different digit. Every time the
shift key is pressed, the flashing digit moves as follows.
All modes except SV setting mode A: SV setting mode
and Parameter setting mode
F: Parameter setting mode
AREA SV
SV
8 8 8 8 8
8 8 8 8 8
Flashing
 The following is also available when changing the set value.
8 210 8 210
Increase SV from
Once
199 to 200
00199 00200
Flashing
8 210 MODE 8 210
Decrease SV from
Once
200 to 190
0200 00200
Flashing
8 210 MODE 8 210
Decrease SV from
200 to 100
Twice
00200 00200
Flashing
 To store a new value for the parameter, always press the
key. The display changes to the next parameter
and the new value will be stored. The modified data will not be stored only by operating the
keys. In the Operation transfer mode, however, the selected mode will be valid only by the operations of these
keys.
In case of the Set value (SV), the instrument can be configured in the H: Engineering mode so that the
modified set value will be adopted 2 seconds after the change without pressing the
 In case no operation is performed within 60 seconds after the change of the setting, the mode will return to
A: Monitor and SV setting mode. The modified data will not be registered in this case.
5. SET THE EVEVT SET VALUE
As shown below, the Event trigger values are set according to the preset event types.
Set the Event 1 set value (EV1) to 100 C
A: Monitor & SV setting mode
Input 1_
8 210
Measured
value (PV)/
0
Set value
(SV) monitor
(2 seconds)
F: Parameter setting mode
Pn00
Parameter
group No. 00:
SV
Setting
Parameter
Pn40
group No. 40:
Event EV
2EV1 2EV2
Event 1 set
Event 2 set
value (EV1)
value (EV2)
00050 00050
Flashing
(Once)
MODE
2EV1
2EV1
(5 times)
00100
00050
Flashing
Outline of memory area
The Memory area function is to store up to 16 areas (patterns) of parameters such as a Set
value (SV). This parameter can be found in the F: Parameter setting mode. Any one area
out of 16 areas can be called up for the control.

Parameter groups in F: Parameter setting mode
No. 00 Setting No. 56 Input 1_Cool control *
No. 40 Event * No. 70 Memory area function
No. 51 Input 1_Control No. 71 Input 1_Input knee point correction *
No. 52 Input 2_Control * No. 72 Input 2_Input knee point correction *
* May not be shown depending on the specification.
 One memory area consists of eight parameter groups.
 To change a memory area number to another, when a certain parameter is displayed,
MODE
press the key to shift the flashing digit to the left until the flashing digit
reaches the AREA digit.
[Example: Memory area transfer of set value (SV)]
Memory area No. 1
MODE
Pn00 1. P0SV 1. P0SV
(5 times)
AREA AREA AREA
SV 00100 00100
1 1 1
Flashing Flashing
Memory area No. 2
For the Memory area transfer, the
1. P0SV
values of the parameters will change
AREA
when the Memory area No. is
2 00200
switched. No storing operation by the
key is required.
Flashing

1. SWITCHING BETWEEN MODES

Power ON
Model, Input type
and Input range
GZ900
Model
GZ400 or GZ900
@C88K
(Example: GZ900)
Automatically (in 1 second)
Input symbol
1. 8 INP
Unit for input 1
Temperature input: C or F
@C88K
Voltage/Current input:
No display
Input type for input 1
(Refer to the Input type
symbol table)
Automatically (in 1 second) *
1372
Input 1_Input range high
-200
Input 1_Input range low
Automatically (in 1 second) *
Unit for input 2 and
2. INP
Input type for input 2
@C K (Refer to Input 1 for the displayed
contents.)
Automatically (in 1 second)
1372
Input 2_Input range high
and Input 2_Input range low
-200
* Displayed for 2 seconds
Automatically
2. SV
(Single input type)
(in 1 second)
0

3. SET THE SET VALUE (SV)

Set value (SV) is the control target value.
Set the Input 1_Set value (SV) to 200 C
[Auto mode (RUN)]
A: Monitor & SV setting mode
8
Input 1_
PV1 8
Measured
Flashing
value (PV)/
Set value (SV)
monitor
PV1
8
Input 1_
Set value (SV)
00000
setting
8 210
PV1 8
Once
00190
00000
Flashing
Flashing
8 210
PV1 8
3 times
-0100
00200
Flashing
and D1 O
PV2
Input 2_
Set value (SV)
00000
setting
key.
To return to the top of the list, press the MONI key or the

6. RUN/STOP TRANSFER

The control is switched between RUN and STOP. The instrument must be
stopped before attempting the setting in the Engineering mode.
Change form RUN to STOP
[Auto mode (RUN)]
A: Monitor & SV setting mode
Input 1_
8 210
Measured
value (PV)/ 0
Set value
(SV) monitor
MODE
(2 seconds)
C: Operation transfer mode
82R/S
RUN/STOP
transfer
RUN
RUN state
(2 seconds)
or Change form STOP to RUN
+ MODE
[Auto mode (STOP)]
A: Monitor & SV setting mode
Input 1_
8 210
Measured
value (PV)/ STOP
Set value
(SV) monitor
MODE
(2 seconds)
C: Operation transfer mode
82R/S
RUN/STOP
transfer
STOP
STOP state

9. SET DATA UNLOCK/LOCK TRANSFER

This is a function to lock the set data to restrict the change of the set data.
Locking the Engineering mode
A: Monitor & SV setting mode
* When the
certain period of time, the Parameter setting
Input 1_
8 210 mode will be displayed once. If the SET key is
Measured
kept pressing without releasing the finger from
value (PV)/
0 the key, the Setting lock mode is entered.
Set value
(SV) monitor
(4 seconds*)
D: Setting lock mode
LOCK
Set data
Unlock
Area lock
unlock/lock
state
oFF
transfer
Flashing
LOCK
Set lock
on
MODE (4 times)
LCK. LV
Set lock
level
00000
Flashing
A: SV setting mode **
0: Unlock
C: Operation transfer mode
1: Lock
F: Parameter setting mode
G: Setup setting mode
H: Engineering mode
The Set lock level can be changed even after the set data lock has been set.
X  Y: Press X and Y keys simultaneously
Legend X: Press X key once
X (n times): Press X key n times
X (n seconds): Press and hold X key for n seconds or more.
X  Y (n seconds): Press and hold X and Y keys simultaneously for n seconds
B
Parameter select
mode
F
Parameter setting
(2 seconds)
mode
G
Setup setting
mode
Input type symbol
K J T S r E B n P
Symbol
TC
Input type
K J T S R E B N
W U L PR PT JP V
Symbol
TC RTD
Input type Voltage Current
W5Re/ PR40
U L
Pt100 JPt100
W26Re -20
[Auto mode (STOP)] [Manual mode]
A: Monitor & SV setting mode A: Monitor & SV setting mode
Input 1_ Input 1_
210 PV1 8 210
Measured Measured value
value (PV)/ (PV)/Manipulated
0 STOP
Set value (SV) output value (MV)
monitor monitor
(MAN1 lamp ON)
210
Input 1_
Set value (SV)
setting
Flashing
(Twice)
MODE
210
(Twice)
210
A single input type have different screens.
100
Input 2_
Flashing
Set value (SV)
setting
key until the first parameter is displayed.

7. AUTO/MANUAL TRANSFER

The control mode is switched between AUTO and MANUAL.
Switching Input 1 to Manual mode
[Auto mode (RUN)]
[Auto mode (STOP)]
A: Monitor & SV setting mode
A: Monitor & SV setting mode
Input 1_
8
Input 1_ Measured
8 210
Measured value (PV)/
value (PV)/ STOP Set value
Set value
(SV) monitor
(SV) monitor
MODE
(2 seconds)
C: Operation transfer mode
or
82R/S
+ MODE RUN/STOP
transfer
82R/S
SToP
STOP state
1.
Input 1_
Auto/Manual
transfer
[Auto mode (RUN)]
A: Monitor & SV setting mode
Input 1_
8 210
While the Input 1_PV/SV monitor is displayed on GZ400/900, the Input
Measured
1_Manipulated output value (MV) can be displayed on the MV display
value (PV)/ 0
unit (third display unit). Similarly, while the Input 2_ PV/SV monitor is
Set value
displayed on GZ400/900, the Input 2_Manipulated output value (MV)
(SV) monitor
MODE
can be displayed on the MV display unit (third display unit).
(2 seconds) These parameters are set in H: Engineering mode.
or
Measured value (PV) display
+
MODE
Set value (SV) display
82R/S
Manipulated output value (MV) display
rUn
RUN state

10. SETTING POWER SUPPLY FREQUENCY (REQUIRED)

To prevent malfunction and instrument failure, setting Power supply frequency (50/60Hz) is required. Set the power
key is pressed and held for a
supply frequency at Power supply frequency parameter in the H: Engineering mode.
Changing Power supply frequency to 60 Hz
(4 seconds)
or A: Monitor & SV setting mode
+ MODE
Input 1_
8 210
Measured
ARE. LK
value (PV)/ 0
Set value
00000
(SV) monitor
MODE
(2 seconds)
C: Operation transfer mode
82R/S
LCK. LV
Engineering
RUN/STOP
mode is
transfer
RUN
10000
locked
LCK. LV
00000
82R/S
STOP
Flashing
** Including "B: Parameter
(2 seconds)
select mode"
Display of
each mode
･MONI
Automatically
･SET+<MODE
When the Blind
･No key is operated
Auto-
function is activated.
for 60 seconds.
matically
MODE +
Any one of the above
A
Monitor & SV setting
mode
+ MODE
+ MODE
(2 seconds)
H
+ MODE
Engineering mode
(2 seconds)
PL II
Parameters in the Engineering mode should be set according to the application before setting any
I
parameters related to operation. Once the Parameters in the Engineering mode are set correctly, no
further changes need to be made to parameters for the same application under normal conditions. If they
are changed unnecessarily, it may result in malfunction or failure of the instrument. RKC will not bear any
responsibility for malfunction or failure as a result of improper changes in the Engineering mode.

4. SET AUTOTUNING (AT)

The Autotuning (AT) function automatically measures, computes and sets the optimum PID values.
Set the Input 1_Autotuning (AT)
A: Monitor & SV setting mode
PV1
Input 1_
PV1 8 210
Measured value (PV)/
Set value (SV) monitor
105. 0
C: Operation transfer mode
1. 21SV
Flashing
RUN/STOP transfer
00000
(Twice)
MODE
1. 21SV
Input 1_
Autotuning (AT)
00000
(Twice)
Flashing
1. 21SV
00200
2. SV
Flashing
00000
Manipulated output value setting
in manual mode
After the Manual mode is selected using the Auto/Manual transfer, set the
Manipulated output value (MV) on the PV/MV monitor in the A: Monitor & SV
setting mode using the
[Manual mode]
[Manual mode]
A: Monitor & SV setting mode
A: Monitor & SV setting mode
Input 1_
210
8 210
Measured Input 1_Measured
0 value (PV)/ value (PV)/Manipulated
105. 0
output value (MV)
Set value
monitor
MODE (SV) monitor
(2 seconds)

Press the
MODE
(2 seconds) 
Press the
or

If the
RUN +
MODE
Manipulated output value (MV) will be accelerated.

The output value adjusted with the
(Several times)
immediately.
2 A/M 1. 2 A/M

8. MEMORY AREA TRANSFER

AUTO MAN
Auto mode Manual mode
The memory area to be used for control (control area) can be switched to the
(MAN1 lamp ON)
desired area.
Change control area from No. 1 to No. 2
A: Monitor & SV setting mode
Input 1_
Measured
88888
value (PV)/
Set value
88888
(SV) monitor
88888
E: Memory area transfer mode
Memory area
transfer
H: Engineering mode
Fn10
Function
block No. 10:
DSP
Display
(Twice)
RUN state
Fn21
Function
block No. 21:
1. 0 InP
Input 1
To set parameters in
the Engineering mode,
(Several times)
the control must be
stopped.
PFRQ
Power supply
STOP state
frequency 50 Hz
00000
Flashing
+ MODE
E
AREA
Memory area
transfer mode
C
MODE
Operation transfer
(2 seconds)
mode
D
(4 seconds)
Setting lock mode
+
MODE
(2 seconds)
8 210
0
(2 seconds)
MODE
82R/S
RUN
MODE
or
1. 8 ATU
oFF
1. 8 ATU
AT1 lamp flashing
on [AT start]
MODE (2 seconds)
or
+ MODE
and keys.
8 210
PV1
(MAN1 lamp ON)
105. 0
key to increase the Manipulated output value (MV).
key to decrease the Manipulated output value (MV).
or key is kept pressing, the changing rate of the
and keys will be valid
A: Monitor & SV setting mode
Control area No. 1
Control area No. 2
Input 1_
8 210
8 210
Measured
AREA
value (PV)/ AREA
1 0
2 100
Set value
(SV) monitor
AREA
AREA AREA
AREA AREA
1 00001 1 00002
Flashing
PFRQ
60 Hz
00001
Fn21
Function
block No. 21:
1. 0 InP
Input 1
MODE
(2 seconds)
or
+ MODE
A: Monitor & SV setting mode
Input 1_
8 210
Measured
value (PV)/
0
Set value
(SV) monitor