Delta DVP-SX User Manual

2006-01-12

http://www.delta.com.tw/industr ialautoma tion/

5011627202-SXE2

Multi-function, Built-in Analog

DVP-SX

I/O, Multiple Commands PLC

Instruction Sheet

1

This Instruction Sheet only provides descriptions for electrical specifications, general specifications,

installation & wiring, troubleshooting and peripherals. Other detail infromation about programming and
commands is compatible with SA/SC/SX series; please see PLC Application Manual. For more information
about the optional peripherals , please see individual product manual.

This is an OPEN TYPE PLC. The PLC should be kept in an enclosure away from airborne dust, humidity,
electric shock risk and vibration. Also, it is equipped with protective methods such as some special tools or
keys to open the enclosure, so as to avoid the hazard to users and the damage to the PLC.

Never connect the AC main circuit power supply to any of the input/output terminals, as it will damage the

PLC. Check all the wiring prior to power up. To avoid any electromagnetic noise, make sure the PLC is
properly grounded

2

. Do NOT touch terminals when power on.

2.1 Model Name Explanation and Peripherals

Thank you for choosing DELTA’s PLC DVP series.
TheDVP-SX series is a 10-point (4DI+2DO+2AI+2AO)
special main processing unit. Besides the same
commands and functions as DVP-SA/SX/SC series,
2-CH 12-bit analog voltage/current input and 2-CH
12-bit analog voltage/current output are all bipolar.
There is built-in 2-digit 7-segment display corresponds
to internal register directly to display PLC station or
user-defined code.

 Model Name

Series Name

Points (6DI+2DO+2A I+2AO)

SX Series

R: Relay
T: Transistor

DC Power Input

 Peripherals

◎ DVPHPP02: Handheld Programming panel
◎ WPLSoft: Windows Ladder Logic Programming Software

◎ DVPACAB115: 1.5M Cable (HPP  PLC, included in DVPHPP02)
◎ DVPACAB215: 1.5M Cable (PC (DB9+DB25)  PLC)
◎ DVPACAB230: 3.0M Cable (PC (DB9+DB25)  PLC)
◎ DVPACAB2A30: 3.0M Cable (PC (DB9)  PLC)

2.2 Product Profile and Outline

※ Battery replacement: Please change the battery within 3 minutes,

or the internal data of the PLC (including the program area, RTC
and latched registers) could be lost or destroyed.

Units: mm

WARNING

INTRODUCTION

 Nameplate Explanation

Input Power Supply Spec.

Barcode and Serial Numbe r

PLC Model

Output Module Spec.

CPU Version

 Serial Number

MODEL : DVP10SX11R

POWER IN PUT : 24 Vdc 6W

OUTPUT MODULE : 2.0A 250Vac 50/60Hz RES. LOA D

V1.00

DELTA ELECTRONICS INC.

Status indicator: POWER, RUN,

1

ERROR, BAT.LOW

RUN/STOP switch

2

2-digital 7-segment display

3

Digital I/O terminal

4

DIN rail clip

5

Analog I/O terminals

6

I/O point indicators

7

COM1 (RS-232) (Rx) indicator

8

COM2 (RS-485) (Tx) indicator

9

COM1 (RS-232) Communication

10

port (Slave)
Nameplate

11

Expansion port

12

Mounting hold of the expansion unit

13

DIN rail (35mm)

14

Expansion unit clip

15

COM2 (RS-485) Communication

16

port
DC Power input

17

10SX11R0T4020001

MADE IN XXXXXX

Production number
Production week
Production Year 2004
Production factory

Version type
Production model

2 pin removable terminal (standard accessory)

18

Power input cable (standard accessory)

19

Battery Cover

20

3

FUNCTION SPECIFICATIONS

Battery socket connection

21

Battery mount

22

Items Specifications Remarks

Control Method Stored program, cyclic scan system

I/O Processing Method

Execution Speed Basic commands (several us)

Program language Commands + Ladder Logic + SFC Including the Step commands
Program Capacity 7920 STEPS SRAM + Battery
Commands 32 Basic sequential commands (including STL/RET) 168 Application commands

X External input relay X0~X177, octal number system, 128 points Correspond to external input point

Y External output relay Y0~Y177, octal number system, 128 points

General M0~M511, 512 points (*1)

Auxiliary

M

T Timer

Relay (bit mode)

C Counter

S

T Current value of the timer T0~T255, 256 points

C Current value of the counter

D

Register (WORD data)

None File register 0~1599 (1600 points) (*4) Expansion register for storing data.

N

P For CJ, CALL commands P0~P255, 256 points The location point of CJ, CALL.

Pointer

I

K Decimal

H Hexadecimal H0000 ~ HFFFF (16-bit operation), H00000000 ~ HFFFFFFFF (32-bit operation)

Constant
Programming port COM1: RS-232, COM2: RS-485 (Master/Slave), They can be used at the same time.

Analog Volume / RTC MPU built-in bipolar 2-CH A/D, D/A, 12 bits, 2-digital 7-segment display, built-in RTC
Special Expansion Module Use the same modules (AD, DA, PT, TC, XA, RT) of SS series. (Max. 8 Expansion Unit points)

Latched

Relay

Special M1000~M1999, 1000 points (some are latched)

100ms

10ms

1ms T246~T249, 4 points Accumulative (*4)

16-bit count up

up/down

32bit high-speed
count up/down

Initial step point S0~S9, 10 points (*1)
Zero point reset S10~S19, 10 points (use with IST command) (*1)

Step

General S20~S511, 492 points (*1)

point

Latched S512~S895, 384 points (*3)
Alarm S896~S1023, 124 points (*3)

General D0~D199, 200 points (*1)

Data
register

For master control nested
loop

Latched

Special D1000~D1999, 1000 points
Index E0~E3, F0~F3, 8 points (*1)

External interrupt

Time interrupt
Hi-speed counter I010, I020, I030, I040, I050, I060; 6 points

Interrupt Service

Communication I150, 1 point

Batch processing method (when END command is
executed)

points

M512~M999, 488 points (*3)
M2000~M4095, 2096 points (*3)

T0~T199, 200 points (*1)
T192~T199 for Subroutine
T250~T255, 6 points Accumulative (*4)
T200~T239, 40 points (*2)
T240~T245, 6 points Accumulative (*4)

C0~C95, 96 points (*1)
C96~C199, 104 points (*3)
C200~C215, 16 points (*1) 32-bit count
C216~C234, 19 points (*3)
C235~C245, 1 phase 1 input, 9 points (*3)
C246~C250, 1 phase 2 inputs, 3 points (*3)
C251~C254, 2 phase 2 inputs, 3 points (*3)

C0~C199, 16-bit counter, 200 points

C200~C254, 32-bit counter, 50 points

D200~D999, 800 points (*3)
D2000~D4999, 3000 points (*3)

N0~N7, 8 points

I001 (X0), I101 (X1), I201 (X2), I301 (X3), I401 (X4), I501
(X5); 6 points (all are rising-edge trigger)

I6□□ (1ms), I7□□ (1ms), (□□＝1~99ms)

K-32,768 ~ K32,767 (16-bit operation)

K-2,147,483,648 ~ K2,147,483,647 (32-bit operation)

points

points

points

points

points

I/O refresh command is available

Application Commands
(10~hundreds us)

Tot a l

256

Correspond to external output point

Tot a l

Contacts can switch to On/Off in

4096

program

When the timer that set by TMR

Tot a l

command reaches the preset

256

value, the T contact with the same
number will be On.

When the counter that set by CNT

Tot a l

(DCNT) command reaches the

250

preset value, the C contact with the
same number will be On.

Usage device of step ladder

Tot a l

diagram (SFC)

1024

Latched Range:
Start: D1214 (K512)
End: D1215 (K895)

When the timer reaches the preset
value, the contact of timer will be
On.
When the counter reaches the
preset value, the contact of counter
will be On.

Tot a l

Can be memory area for storing

5000

data. E and F can be used as the
special purpose of index indication.

Control point of master control
nested loop

The location pointer of interrupt
subroutine

*1: The non-latched area is fixed, and can’t be changed.
*2: The non-latched area can be changed to a latched area with parameter setting.
*3: The latched area can be changed to a non-latched area with parameter setting.
*4: The latched area is fixed, and can’t be changed.

M

Auxiliary

Relay

T

Timer

C

Counter

S

Step re lay

D

Register

File Register K0~K1599, Latched (fixed)

General Latched Special auxiliary relay Latched

M0~M511 M512~M999 M1000~M1999 M2000~M4095

Non-latched (fixed)

100 ms 10 ms 10ms 1 ms 100 ms

T0 ~T199 T200~T239 T240~T245 T246~T249 T250~T255

Non-latched (fixed) Non-latched (fixed) Accumulative Latched (fixed)

16-bit count up 32-bit count up/down 32-bit high-speed count up/down

C0~C95 C96~C199 C200~C215 C216~C234 C235~C245 C246~C255

Non-latched

(fixed)

For general Latched Special register Latched For general

S0~S9 S10~S19 S20~S511 S512~S895 S896~S1023

Non-latched (fixed)

Latched (default) Latched (default) Latched (default)
Start: D1208 (K96)
End: D1209 (K199)

It is fixed to be non-latched

General Latched Special registers Latched

D0~D199 D200~D999 D1000~D1999 D2000~D4999

Latched (default) Latched (default)

Start: D1200 (K512)

End: D1201 (K999)

Non-latched

(fixed)

Factory setting is latched. Factory setting is latched.

Start: D1216 (K200)

End: D1217 (K999)

Some are latched and can’t

be changed

Start: D1210 (K216)

End: D1211 (K234)

Factory setting is latched

Start: D1214（K512）

End: D1215（K895）

Some are latched and can’t

be changed.

Start: D1202 (K2000)

End: D1203 (K4095)

Start: D1212 (K235)

End: D1213 (K255)

It is fixed to be latched

Start: D1218 (K2000)

End: D1219 (K4999)

※ When switching between power On/Off or MPU RUN/STOP modes:

Memory Type

Non-latched Clear Unchanged

Latched Unchanged Unchanged Clear 0

Special M, Special D,

Index register

File register Unchanged 0

4

POWER

OffOn

Initial value Unchanged Unchanged

STOPRUN RUNSTOP

M1033=Off, clear

M103=On, unchanged

BUILT-IN ANALOG I/OAND 7-SEGMENT DISPLAY

Clear all M1031

non-latched area

Clear Unchanged 0

Clear all M1032

latched area

Factory
Setting

Initial
value

Built-in 2-CH 12-bit A/D and 2-CH 12-bit D/A are bipolar. It can read A/D converted digital value and get
designated analog output by reading special D or writing into special D. Refer following table for corresponding
special D.

Device No. Function

D1111

Present value of AD card
channel 0 (CH0)

Present value of AD card
channel 1 (CH1)

Average value of AD card
channel 0 (CH0)

Average value of AD card
channel 1 (CH1)

Conversion sampling time
(ms)

D1056

D1057

D1110

D1116 DA card channel 0 (CH0)

D1117 DA card channel 1 (CH1)

D1118

5

Model
Item

Power supply voltage

Fuse 2A / 250VAC
Power Consumption 5W 1W 1.5W 1.5W 2W
Insulation Resistance

Noise Immunity

Grounding

Environment

Vibration / Shock Resistance Standard: IEC1131-2, IEC 68-2-6 (TEST Fc) / IEC1131-2 & IEC 68-2-27 (TEST Ea)

Weight (approx.) (g) 158 128 154 /146 141 /136 162 /154

Approvals

Electrical Specification of Input Point Electrical Specification of Output Point

Input Type DC (SINK or SOURCE) Output Type Relay-R Transistor-T

Input Current 24VDC 5mA

Active Level

Responding

Time

Off→On, above16VDC

On→Off, below 14.4VDC

About 10ms (An
adjustment range of 0~20
ms could be selected
through D1020 and D1021)

6

Model Power

DI AI DI AI DO AO DO AO

DVP10SX11R 4 2 2 2 Relay

DVP10SX11T

24VDC

+20%

-15%

4 2

7

■ Built-in Display

2-digital
7-segment di splay

ELECTRICAL SPECIFICATIONS

DVP10SX11R/T DVP08SM11N DVP08SN11R/T DVP08SP11R/T DVP16SP11R/T

MPU: 24VDC (-15%~20%) (with DC input reverse polarity protection),
Expansion Unit: supplied by the MPU

ESD: 8KV Air Discharge
EFT: Power Line: 2KV, Digital I/O: 1KV, Analog & Communication I/O: 250V
Damped-Oscillatory Wave: Power Line: 1KV, Digital I/O: 1KV
RS: 26MHz~1GHz, 10V/m

The diameter of grounding wire cannot be smaller than the wire diameter of terminals L and N

(All DVP units should be grounded directly to the ground pole).

Operation: 0℃~55℃ (Temperature), 50~95% (Humidity), Pollution degree 2;
Storage: -25℃~70℃ (Temperature), 5~95% (Humidity); D/A output operation: 0℃~50℃
(Temperature)

> 5 MΩ at 500 VDC (Between all inputs / outputs and earth)

Current
Specification

Voltage
Specification

Maximum
Loading

Responding
Time

MODEL NAME & I/O CONFIGURATION

Input Output

Point Type Point Type

DC24V/5 mA

Sink or
Source

INSTALLATION & WIRING

This built-in display corresponds to special D directly.
User can use it to display error code or station when
executing PLC LINK. It is great convenience for system
maintenance. Refer following table for corresponding
special D.

Device No. Function

M1196

M1197

M1198

D1196 Display content

1.5A/1 point
(5A/COM)

Below 250VAC,
30VDC

75VA (Inductive)

90 W (Resistive)

About 10 ms

-20~20mA

range(-1000~+1000)

-10~+10V

range(-2000~+2000)

Number system setting for display (Off:
Decimal, On: Hexadecimal)

The decimal point setting between the middle
and the right-most numbers

The decimal point setting after the right-most
number

－

0.3A/1 point @ 40℃; When the output of Y0
and Y1 is high-speed pulse, Y0 and Y1 =
30mA

30VDC

When the output of Y0 and

9W/1 point

Off→On 20us

On→Off 30us

2 2 Resistor

Y1 is high-speed pulse, Y0
and Y1 = 0.9W (Y0 = 32kHz,
Y1 = 10kHz)

Y0 and Y1 are specified
points for high-speed pulse

(range:-2000~+2000)

(range:-2000~+2000)

-20~20mA

-10~+10V

7.1 PLC Mounting Arrangements and Wiring Notes

Installation of the DIN rail

The DVP-PLC can be secured to a cabinet by using the DIN
rail that is 35mm high with a depth of 7.5mm. When
mounting the PLC on the DIN rail, be sure to use the end
bracket to stop any side-to-side motion of the PLC, thus to
reduce the chance of the wires being pulled loose. At the
bottom of the PLC is a small retaining clip. To secure the
PLC to the DIN rail, place it onto the rail and gently push up
the clip. To remove it, pull down the retaining clip and gently
pull the PLC away from the DIN rail. As shown on the right:

Wiring

22-16AWG

Notes:

1. Please use 22-16AWG (1.5mm) wiring (either single or multiple core) for I/O

When installing the DVP series
PLC, make sure that it is
installed in an enclosure with
sufficient space (as shown
below) to its surroundings so as
to allow heat dissipation.

D

DD

DVP

MP

D

D > 50 mm

wiring terminals. The specification for the terminals is as shown on the left.
PLC terminal screws should be tightened to between 1.95 kg-cm (1.7 in-lbs).

<1.5mm

2. I/O signal wires or power supply should not run through the same multi-wire

cable or conduit. Use Copper Conductor Only, 60/75 °C

7.2 Wiring Notes

Power Input Wiring

DVP-SX series input power supply is DC input. Please take a note of listed items when operating DVP-SX. Series.

1. Please make sure the power is at terminals 24VDC and 0V (power range is 20.4VDC~28.8VDC). When
voltage is lower than 20.4VDC, PLC will stop operating, all outputs will turn Off and ERROR LED will flash
continuously.

2. If the power-off time is less than 10ms, the PLC still operates unaffectedly. If the power-off time is too
long or the power voltage drops, the PLC will stop operating and all the outputs will be Off. Once the
power is restored, the PLC will return to operate automatically. (There are latched auxiliary relays and
registers inside of the PLC, please be aware when programming.)

DC Input Type

20.4V~28.8V

Safety Wiring

Since the PLC is in control of numerous devices, motion of either one device could affect the motion of other
devices, therefore the breakdown of either one device would consequently be detrimental to the whole auto
control system, and danger will thus be resulted. Please use the recommended wiring below for the power
input:

5

4

8

Guard
Limit

MC

NL

6

MC

2

3

MC

Input Point Wiring

The input signal of the input point is the DC power DC input. There are two types of DC type wiring: SINK and
SOURCE, defined as follows:

◎ There are two types of DC type wiring: SINK and SOURCE, defined as follows:

Sink = Current flows into the common terminal S/S Source = Current flows out of common terminal S/S

S/S

Sinking

X0

DC Type

(DC Signal IN)

SINK Mode

Loop Equivalent Circuit of Input Point Wiring Loop

+24V

24G

S/S

X0

7

24VDC

24V

0V

2A

DC/DC

S/S

5V

X0 X1 X2



Power supply for AC loads



1

Power Circuit Protection Fuse (3A)



Power On pilot indicator



Emergency stop
The machinery must provide a quick manual method
disconnecting all system power.



Circuit isolation device (System Power Disconnect)
Utilize the electromagnetic contactor and the relay to be

1

the isolation unit of the power circuit to prevent the
possible instability of the system when the power is
supplied on and off.



DVP PLC MPU (main processing unit)



Grounding



Power supply:
AC: 100~240VAC, 50/60Hz
DC: 24VDC

SINK

+5V

+24V OV

24VDC

X0

S/S

Sourcing

X1 X2S/S X0

Sink Type

Loop Equivalent Circuit of Input Point Wiring Loop

+24V

24VDC

DC Type

(DC Signal IN)

SOURCE Mode

24G

SOURCE

+5V

S/S

X0

24VDC

X1 X2S/S X0+24V OV

Source Type

Output Point Wiring

DVP-**-**-11-R

LED

LOAD

Y0

RY

C0

POWER

1. There are two kinds of DVP-SX Series PLC output modules:
Relay and Transistor. For relevant electrical specification,
please refer to the function specification.

2. Be careful with the connection of the common terminals when
wiring outputs. For example, when wiring DVP12SX11R,
output terminal Y0 uses one common terminal C0, Y1 uses C1,
as shown below:

C0Y0C1Y1

Action indication: When the output point is active, the
corresponding indicator at the front will be on.

3. Isolated circuit: The optical coupler is used to isolate signals

DVP-**-**-11-T

LED

RELAY OUTPUT

T
R
G

Y0

C0

TRANSISTOR OUTPUT

LOAD

< 0.3A

between PLC internal circuits and input modules.

Voltage input

-10V~+10V

Current input

-20mA~+20mA

AC drive, recorder,
scale valve...

AC drive, recorder,
scale valve...

terminal of
power module

8

Shielded*1

Shielded*1

voltage output

*5

class 3 grounding
(100

*3

-10V~+10V

shielding cable *1

current output

-20mA~20mA

shielding cable *4

or less)

CH0

CH1

*2

DC24V

V+

COM

V+

COM

I+

I+

CH0

CH1

250

250

V+

COM

V+

COM

24+
24-

100K

100K

AG

100K

100K

AG

Note 1: Please isolate analog input and other

CH0

power wiring.

Note 2: If input signal is in current, please short

out between V+ and I+ terminals.

Note 3: If the noise interference from loaded

CH1

input wiring terminal is significant,

please connect a capacitor with

0.1~0.47μF 25V for noise filtering.

Note 4: Please isolate analog output and other

I+

CH0

power wiring.

Note 5: If the noise interference from loaded

input wiring terminal is significant,

please connect a capacitor with

I+

CH1

0.1~0.47μF 25V for noise filtering.

Note 6: Please connect

terminal and

power module

analog output module

terminal to system earth point and

make system earth point be grounded

DC/DC

converter

+15V

AG

-15V

or connects to machine cover.

Warning: DO NOT wire to the No function

terminal

TRIAL RUN

☼ Power Indication

The “POWER” LED at the front of the MPU or the Expansion Units will be lit (in green) if the power is on. If the
indicator is not on when the MPU is powered up, it means that the 24V DC power supply of the PLC is
overloaded. It is thus necessary to remove the wiring on terminals +24V and 24G, and to use a 24VDC power
supply instead. If the ERROR LED is blinking swiftly, it suggests that the +24V power supply of the PLC is
insufficient.

☼ Low Voltage Indication

The “LOW V.” LED on the Expansion Unit is an indication that the input power voltage is insufficient, thus all
outputs of the expansion unit should be turned off.

☼ Low Battery Voltage Indication

There is also a “BAT.LOW” LED at the front of the MPU. When the LED is on, it indicates that the battery
voltage is insufficient. Please change the batter (within 3 minutes) as soon as possible; otherwise the user
programs and the data in latched area may be lost.

Preparation

1. Prior to applying power, please verify that the power lines and the input/output wiring are correct. And be
advised not to supply AC110V or AC220V into the I/O terminals, or it might short-circuit the wiring and
would cause direct damage to the PLC.

2. After using the peripheral devices to write the program into the MPU and that the ERROR LED of the MPU
is not on, it means that the program in use is legitimate, and it is now waiting for the user to give the RUN
command.

3. Use HPP to execute the forced On/Off test of the output contact.

Operation & Test

If the “ERROR” LED of the MPU is not blinking, use RUN/STOP switch or the peripheral devices (HPP or
WPLSoft) to give the RUN command, and the RUN indicator will then be on. If the “RUN” LED is not on, it
indicates that there is no program inside the PLC.

HPP could be utilized to monitor the settings and the registered values of the timer (T), the counter (C) and the
data register (D) during operation, and moreover, to force the output contacts to conduct the On/Off action. If
the ERROR LED is on (but not blinking), it means that the setting of the user’s program has exceeded the
preset time-out limit. At this case, please turn the PLC RUN/STOP switch to STOP, and find out the address
of the time-out program by special data register D1008. ”WDT” instruction can be used to solve the problem.

PLC Input/Output Reaction Time

The total reaction time from the input signal to the output operation is calculated as follows:

Reaction Time = input delay time + program scan time + output delay time

Input delay time

Factory setting: 10 ms. Please refer to the usage of special

register D1020~1021.
Program scan time Please refer to the usage of special register D1010.
Output delay time Relay module: 10ms. Transistor module: 20~30us.

Basic Commands and Application Commands of the PLC:

1. The basic commands and the application commands of the MPU of this series are totally applicable to
the DELTA DVP-PLC SA/SX/SC Series MPU. Refer to the DELTA PLC Technique Application Manual
for relevant basic commands and application commands.

2. The DVPHPP handheld programming panel and the WPLSoft (the Windows version) editing program of
the ladder diagram are both good for use with the DELTA DVP-PLC. Also, the PLC could connect with
the DVP12SX MPU through specific transmission wire to execute the program transmission, the MPU
control and the program monitoring.

9

TROUBLESHOOTING

Judge the errors by the indicators on the front panel. When errors occurred on DVP PLC, please check:

☼ “POWER” LED

There is a “POWER” LED at the front of the MPU. When the MPU is powered On, the green LED light will be on.
If the indicator is not on when the MPU is powered up and with the input power being normal, it is an indication
that the PLC is out of order. Please have this machine replaced or have it repaired at a dealer near you.

☼ PLC “RUN” LED

Identify the status of the PLC. When the PLC is in operation, this light will be on, and users could thus use HPP
or the editing program of the ladder diagram to give commands to make the PLC “RUN” or “STOP”.

☼ “ERROR” LED

If incorrect programs are input to the MPU, or that the commands and the components exceed the allowable
range, the indicator will blink. At this moment, the user should check both the error codes saved in the MPU data
register D1004 and the Error Code Table below to correct the programs. The address that the error occurs will
be stored in data register D1137 (the address saved in D1137 is invalid in case of common loop error).

When the ERROR LED is on (not blinking), users should make a judgment from the special relay M1008 of the
MPU. If it is On, it indicates that the execution time of the program loop has exceeded the time-out setting (set by
D1000). Please turn the PLC RUN/STOP switch to STOP, and find out the address of the time-out program by
special data register D1008. ”WDT” instruction can be used to solve the problem. Once program modification is
completed, user can re-download the program of PLC and the ERROR LED will be off. If the ERROR LED is still
keep on, please turn off the power and check if there’s any noise or any conductive invader inside the PLC.

☼ “BAT.LOW” LED

When the battery voltage is low, the “BAT.LOW” LED will be on, and the battery should be replaced as soon as
possible; otherwise the user program and the data in latched area will be lost. (On the unplugged PLC, please
change the battery within 3 minutes to retain the PLC’s internal user programs and data). Choose lithium battery
TDRTL-2150/S. Please refer to the following table for battery life information.
Battery life：

Temperature((°C)

0 25 50 70

Life(Years) 9 8 6 5

Precision of calendar timer：

At 0°C/32°F, less than –117 seconds error per month.
At 25°C/77°F, less than 52 seconds error per month.
At 55°C/131°F, less than –132 seconds error per month.

☼ “Input” LED

The On/Off signals of the input point could be displayed through the “Input” LED, or the status of the input point
could be monitored through the device monitoring function of HPP.

☼ “Output” LED

Output LED indicates if the output signals are On or Off. Please check the following items when the LED On/Off
indication does not correspond to the commands: 1. Output contacts may be melted and stuck together due to a
short circuit or current overload. 2. Check wiring and verify that the screws are tight.