YOKOGAWA UM350, UM330 User Manual

NOTE

User’s
Manual

Models UM350 / UM330
Digital Indicator with Alarms
User’s Manual

IM 05F01D02-01E

This manual describes installation, wiring, and other tasks required to make the indicator ready for operation.

1. Safety Precautions

2. Model and Suffix Codes

3. How to Install

4. How to Connect Wires

5. Hardware Specifications

6. Terminal Wiring Diagrams

Introduction

Thank you for purchasing the UM350/UM330 digital indicator with alarms.
The indicator is shipped from the factory with 3 hardcopy user’s manuals (A2 size). T he 3 user’s man uals in hardcopy format
describe the operating procedures required for basic use.
It is recommended that you refer to these user’s manuals to understand [1] installation, [2] initial settings, and [3] operating
procedures of the indicator.

■ How to Use the Manuals

Purpose Manual Title Description Media

Setup

Basic operation

Operating
procedures
and troubleshooting

Brief operation
and setpoint recording

1. Safety Precautions

The following symbol is indicated on the indicator to ensure safe use.

CAUTION

This symbol on the indicator indicates that the operator must refer to an explanation in the user’ s manual in order to
avoid the risk of injury or death of personnel or damage to the instrument. The manual describes ho w the opera tor
should exercise special care to avoid electric shock or other dangers that may result in injury or loss of life.

The following symbols are used in the hardcopy user’s manuals.

NOTE

Indicates that operating the hardware or software in a particular manner may damage it or result in a system failure.

IMPORTANT

Draws attention to information that is essential for understanding the operation and/or features of the indicator.

■ Exemption from Responsibility

Make sure that all of the precautions are strictly adhered to. Yokogawa Electric Corporation assumes no liability for any
damage resulting from use of the instrument in contradiction to the precautions.
Also, Yokogawa Electric Corporation assumes no liability to any party for any loss or damage, direct or indirect, caused
by the use or any unpredictable defect of the instrument.

■ Regarding Protection, Safety, and Prohibition Against Unauthorized Modification

(1) In order to protect the product and the system controlled by it against damage and ensure its safe use, make certain that

all of the instructions and precautions relating to safety contained in this document are strictly adhered to. Yokogawa
does not guarantee safety if products are not handled according to these instructions.

(2) Modification of the product is strictly prohibited.

2. Model and Suffix Codes

Before using the indicator, check that the model and suffix codes match your order.

Model Suffix Code Description
UM350
UM330

Type

Optional functions

Check that the following items are provided:

• Digital indicator with alarms (of ordered model): .........................................1

• Brackets (mounting hardware): ......................................................................1 pair

• Unit label: .......................................................................................................1

• User’s Manuals:..............................................................................................3 (A2 size)

• User’s Manual (Reference) (CD-ROM Version)

(only for indicators with optional communication functions):....................... 1

-0 Standard type with three alarms

-3 Standard type with three alarms (with 24V DC loop power supply)

Installation

Contents

Installation

Initial Settings

Operations

Parameters

Describes the tasks (installation, wiring, and others) required
to make the indicator ready for operations.

Describes examples of setting PV input types, and alarm
types. Making settings described herein allows you to carry
out basic monitoring.

Describes examples of setting alarm setpoints, as well as
key operation necessary to run the indicator

Contains the parameter map used as a guideline for setting
parameters and lists of parameters for recording user settings.

Digital indicator with Alarms (provided with retransmission output and 15
V DC loop power supply as standard)

0 None
1 With communication and additional alarm-4
2 With additional alarm-4

4th Edition: Jan 31, 2005

A2-size paper
(Front and back)

A2-size paper
(Front)

(Back)

A2-size paper
(Front and back)

3. How to Install

NOTE

To install the indicator, select a location where:
(1) no one may accidentally touch the terminals,
(2) mechanical vibrations are minimal,
(3) corrosive gas is minimal,
(4) temperature can be maintained at about 23°C and the fluctuation is minimal,
(5) no direct radiant heat is present,
(6) no magnetic disturbances are caused,
(7) no wind blows against the terminal board (reference junction compensation

element),
(8) no water is splashed,
(9) no flammable materials are around,

Never place the indicator directly on flammable items or equipment.
If the indicator has to be installed close to flammable items or equipment, be sure to provide shielding panels all
around the indicator, at least 150mm away from every side; the panels should be made of either 1.43mm-thick
metal-plated steel plates or 1.6mm-thick uncoated steel plates.

NOTE

Never touch the opening at the bottom of the case. It is to be used in the factory at shipping.

● Installation Position

Install the indicator at an angle within 30° from horizontal with
the front panel facing upward. Do not install it facing down­ward. The position of right and left sides should be horizontal.

Front panel

of indicator

30

■ External Dimensions and Panel Cutout Dimensions

UM350

Large bracket

91.8

Small bracket

[(N-1)96+92]117 min.

UM330

45

(25)

92

+0.6

(53)

+0.8

0

92

48

General installation

0

92

96

11

96

100

1 to 10 mm (Panel thickness)

General installation Side-by-side close installation

0

+0.8

92

+0.8

145 min.

0

(25)

Small bracket

96

10011

"N" stands for the number of indicators to be
installed.
However, the measured value applies if N  5.

112

91.8

Front of indicator

145 min.

70 min.

+0.8

0

(53)

150mm

Unit: mm

112

+0.8

0

Small bracket

1 to 10 mm (Panel thickness)

150mm

Rear of
indicator

Unit: mm

150mm150mm

Must not
exceed 30

■ How to Install

CAUTION

Turn off the power to the indicator before installing it on the panel because there is a possibility of electric shock.

Panel

Direction to insert the
indicator

Insert the

indicator
into the opening at
the front of the panel.

Note: Right and left mounting for UM330.

Small bracket

(bottom mounting hardware)

Large bracket

(top mounting hardware)

Terminal board

Insert a screwdriver into the
brackets to tighten the screws.

Recommended
tightening torque
:0.4 N•m

After opening the mounting hole on the
panel, follow the procedures below to in­stall the indicator:

1. Insert the indicator into the opening
from the front of the panel so that the
terminal board on the rear is at the far
side.

2. Set the brackets in place on the top and
bottom of the indicator as shown in the
figure on the left, then tighten the screws
of the brackets. Take care not to over­tighten them.

4. How to Connect Wires

CAUTION

1) Before carrying out wiring, turn off the po wer to the indicator and check that the cables to be connected are not
alive with a tester or the like because there is a possibility of electric shock.

2) For the protection and safe use of the indicator, be sure to place a circuit breaker (conforms with IEC60947,
5A, 100V or 220V AC) near the indicator where the breaker can easily be operated. In addition, be sure to
indicate that it is the instrument to cut the power supply of the indicator.

3) Wiring must be carried out by personnel who have basic electrical knowledge and practical experience.

1) Provide po wer from a single-phase instrument power supply . If there is a lot of noise in the po wer line, insert an
insulating transformer into the primary side of the line and use a line filter (recommended part: ZAC2205-00U
from TDK) on the secondary side.
As a countermeasures against noise, do not place the primary and secondary power cables close to each other .

2) For thermocouple input, use shielded compensating lead wires for wiring. For RTD input, use shielded wires
that have low conductor resistance and cause no significant differences in resistance between the three wires.
The cables to be used for wiring, terminal specifications, and recommended parts are as shown below.

3) Alarm output relays ha ve a life of 100,000 times that of the resistance load, use auxiliary relays to turn on/off
a load.

4) The use of inductance (L) loads such as auxiliary relays, motors and solenoid valves causes malfunction or
relay failure; always insert a CR filter for use with alternating current or a diode for use with direct current, as
a spark-removal surge suppression circuit, into the line in parallel with the load.

5) When there is possibility of being struck by external lightening sur ge, use the arrester to protect the instrument.

■ For DC Relay Wiring ■ For AC Relay Wiring

UM350/UM330

Relay

External DC power supply

UM350/UM330

R

Diode

UM’s contact

(Use one with a relay coil rating

less than the UM’s contact rating.)

Relay

(Mount it directly
to the relay coil
terminal (socket).)

UM’s contact

(Use one with a relay coil

rating less than the UM’s

contact rating.)

● Cable Specifications and Recommended Cables

Purpose Name and Manufacturer

Power supply, grounding, relay contact outputs

Thermocouple Shielded compensating lead wires, JIS C 1610, X- - -

RTD Shielded wires (three conductors), UL2482 (Hitachi Cable)
Other signals Shielded wires

600 V PVC insulated wires, JIS C 3307, 0.9 to 2.0 mm2

(See Yokogawa Electric's GS 6B1U1-E.)

● Recommended T erminal Lugs

Applicable wire size Tightening torque

0.3 to 1.65 mm

7 mm or less

2

3.7mm

0.8 N·m or less

3.7mm

or

7 mm or less

● Terminal Covers(Optional parts)

Target Model Part Number Sales Unit
UM350 T9115YD 1
UM330 T9115YE 1

1. Before attaching the terminal cover, bend the side with
the groove inward as shown in Fig. A. Be careful not to
bend it backwards. This not only makes it harder to
attach the cover but will also weaken its hold.

2. Fit the holes on the top and bottom (or left and right) of
the terminal cover over the projections on the brackets
(Fig. B) and lock in place. The figure right shows the
attachment of a terminal cover to UM indicator.

Note:Right and left mounting for UM330.

Figure A

External AC power supply

R

Relay

Fold the cover in the direction
of the arrow.

Fit the cover hold
over the protrusion
on the mounting bracket.

CR filter
(Mount it directly
to the relay coil
terminal (socket).)

5. Hardware Specifications

PV Input Signals

• Number of inputs: 1 (terminals 11-12-13)

• Input type: Universal input system. The input type can be

selected with the software.

• Sampling period: 250 ms

• Burnout detection: Functions at TC, RTD, standard signal

(0.4 to 2 V or 1 to 5 V)
Upscale, downscale, and off can be specified.
For standard signal, burnout is determined to have occurred
if it is 0.1 V or less.

• Input bias current: 0.05 A (for TC or RTD b-terminal)

• Measurement current (RTD): About 0.13 mA

• Input resistance: 1 M or more for thermocouple or mV input

About 1 M for DC voltage input

• Allowable signal source resistance: 250  or less for
thermocouple or mV input
Effects of signal source resistance: 0.1 V/ or less
2 k or less for DC voltage input
Effects of signal source resistance: About 0.01%/100 

• Allowable wiring resistance: for RTD input
Maximum 150 /wire: Conductor resistance between three
wires should be equal
However, 10 /wire for a maximum range of -150.0 to

150.0C.
Wire resistance effect: 0.1C /10 

• Allowable input voltage: 10 V DC for thermocouple, mV, or
RTD input
20 V DC for DC voltage input

• Noise rejection ratio: 40 dB (50/60 Hz or more in normal mode
120 dB (50/60 Hz) or more in common mode

• Reference junction compensation error: 1.0C (15 to 35C)
1.5C (0 to 15C, 35 to 50C)

• Applicable standards: JIS, IEC, DIN (ITS-90) for thermocouples
and RTD

Loop Power Supply

Power is supplied to a two-wire transmitter.
(15 V DC: terminals

A resistor (10 to 250 ) connected between the indicator
and transmitter converts a current signal into a voltage
signal, which is then read via the PV input terminal .
Supply voltage: 14.5 to 18.0 V DC, max. 21 mA (provided
with a protection circuit against a field short-circuit); 21.6
to 28.0 V DC, max. 30 mA (only for models with 24 V DC
loop power supply)

Retransmission Output

Outputs the PV value.
Either the retransmission output or the 15 VDC loop power

supply can be used with terminals

• Number of outputs: 1 (terminals

• Output signal: 4-20 mA DC

• Load resistance: 600  or less

• Output accuracy: 0.3% of span under standard operating

conditions (23 2C, 55 10% RH, power frequency of
50/60 Hz)

Contact Inputs

• Purpose: Resetting of PV peak and bottom values

• Number of inputs: 1

• Input type: Non-voltage contact or transistor open collector input

• Input contact rating: 12 V DC, 10 mA or more

• On/off determination: For non-voltage contact input, contact

resistance of 1 k or less is determined as “on” and contact
resistance of 20 k or more as “off.”
For transistor open collector input, input voltage of 2 V or
less is determined as “on” and leakage current must not
exceed 100 A when “off.”

• Minimum status detection hold time: About 1 second

Contact Outputs

• Purpose: Alarm output, FAIL output, and others

• Number of outputs: 4 (Max).

• Relay contact rating for Alarm 1 to 3: 240 V AC, 1 A, or 30 V

DC, 1 A ; 1a (FAIL output ; 1b)

• Relay contact rating for Alarm 4: 250 V AC, 3 A, or 30 V DC, 3
A (resistance load) 3 terminals (NC, NO, Common); 1c

Display Specifications

• PV display:
4-digit, 7-segment red LED display, character height of
20 mm

• Setpoint display: 4-digit, 7-segment, red LEDs, character height
of 9.3 mm

• Status indicating lamps: LEDs

Safety and EMC Standards

• Safety: Complies with IEC/EN61010-1 (CE), approved by
C22.2 No.61010-1, approved by UL508.
Installation category : CAT. II Pollution degree : 2 (IEC/
EN61010-1, C22.2 No.61010-1)
Measurement category : I (CAT. I : IEC/EN61010-1)
Rated measurement input voltage : 10V DC max.(across
terminals), 300V AC max.(across ground)
Rated transient overvoltage : 1500V (Note)
Note : It is a value on the safety standard which is assumed
by IEC/EN61010-1 in Measurement category I, and is not
the value which guarantees an apparatus performance.

CAUTION

This equipment has Measurement category I, there­fore do not use the equipment for measurements
within Measurement categories II, III and IV.

Measurement category

CAT.1

1

CAT.2

2

CAT.3

3

CAT.4

4

Entrance
Cable

14-15

; 24 V DC: terminals 21-22)

16-17

Description

For measurements performed
on circuits not directly
connected to MAINS.
For measurements performed
on circuits directly connected
to the low voltage installation.
For measurements performed
in the building installation.
For measurements performed
at the source of the low-voltage
installation.

Internal Wiring

3

4

1

Outlet

16-17

.

)

Remarks

Appliances, portable
equipments, etc.

Distribution board,
circuit breaker, etc.
Overhead wire, cable
systems, etc.

2

T

Construction, Installation, and Wiring

• Construction: Only the front panel is dust-proof and drip-proof
(protection class IP55)
For side-by-side close installation the indicator loses its
dust-proof and drip-proof protection.

• Material: ABS resin and polycarbonate

• Case color: Black

• Weight: About 1 kg or less

• Dimensions:
UM350 96 (W)  96 (H)  100 (depth from panel face)

UM330 96(W)  48 (H)  100 (depth from panel face)

• Installation: Panel-mounting type. With top and bottom (or right
and left) mounting hardware (1 each)

• Panel cutout dimensions:
UM350 92
UM330 92

• Installation position: Up to 30° upward facing
(not designed for facing downward)

• Wiring: M3.5 screw terminals (for signal wiring and power/
ground wiring as well)

mm

mm

+0.8

0

+0.6

0

(W)  92
(W)  45

+0.8

(H) mm

0

+0.8

(H) mm

0

Power Supply Specifications

• Power supply: Rated voltage of 100 to 240 V AC (10%), 50/60 Hz

• Power consumption: Max. 20 VA (8.0 W max.)

• Internal fuse rating: 250 V AC, 1.6A time-lug fuse

• Data backup: Non-volatile memory (can be written to up to
100,000 times)

• Withstanding voltage

- Between primary terminals* and secondary terminals**:

At least 1500 V AC for 1 minute

- Between primary terminals* and grounding terminal:

At least 1500 V AC for 1 minute

- Between grounding terminal and secondary terminals**:

At least 1500 V AC for 1 minute

- Between secondary terminals**:

At least 500 V AC for 1 minute

* Primary terminals indicate power terminals and relay

output terminals

** Secondary terminals indicate analog I/O signal, and

contact input terminals

• Insulation resistance: 20 M or more at 500 V DC between
power terminals and grounding terminal

• Grounding: Class D grounding (grounding resistance of 100 
or less)

Signal Isolations

• PV input terminals: Isolated from other input/output terminals.
Not isolated from internal circuit.

• 15 V DC loop power supply terminals: Not isolated from 4-20
mA analog output. Isolated from other input/output
terminals and internal circuit.

• 24 V DC loop power supply terminals: Isolated from 4-20 mA
analog output terminals, other input/output terminals and
internal circuit.

• 4-20 mA analog output terminals (for retransmission): Not
isolated from 15 V DC loop power supply. Isolated from
other input/output terminals and internal circuit.

• Contact input terminals: Not isolated from communication
terminals. Isolated from other input/output terminals and
internal circuit.

• Relay contact output terminals: Not isolated between relay
contact output terminals. Isolated from other input/output
terminals and internal circuit.

• RS-485 communication terminals: Not isolated from contact
input terminals. Isolated from other input/output terminals
and internal circuit.

• Power terminals: Isolated from other input/output terminals and
internal circuit.

• Grounding terminals: Isolated from other input/output terminals
and internal circuit.

Environmental Conditions

• Normal operating conditions:

Ambient temperature: 0 to 50C (40C or less for side-by-side

close installation)
0 to 40C if the 24V DC loop power supply of Model
UM330 is used

Temperature change rate: 10C/h or less
Ambient humidity: 20 to 90% RH (no condensation allowed)
Magnetic field: 400 A/m or less
Continuous vibration at 5 to 14 Hz: Full amplitude of 1.2 mm or

less

Continuous vibration at 14 to 150 Hz: 4.9 m/s2 or less
Short-period vibration: 14.7 m/s2, 15 seconds or less
Shock: 147 m/s2 or less, 11 ms
Installation height: Height above sea level of 2000 m or less
Warm-up time: 30 minutes or more after power on

• Transportation and storage conditions:

Temperature: -25 to 70C
Temperature change rate: 20C/h or less
Humidity: 5 to 95% RH (no condensation allowed)

• Effects of changes in operating conditions

- Effects from changes in ambient temperature:

- On voltage or thermocouple input, 1 V/C or 0.01%

of F.S./C, whichever is larger

- On RTD input, 0.05C /C (ambient temperature) or less

- On analog output, 0.05% of F.S./C or less

- Effects from power supply fluctuation (within rated voltage
range)

- On analog input,  1 V/10 V or  0.01% of F.S. /10 V,
whichever is larger

- On analog output, 0.05% of F.S./ 10 V or less

Figure B

• EMC standards: Complies with EN61326, EN61000-3-2,
EN61000-3-3 and EN55011 (CE).
Class A Group 1.
The instrument continues to operate at a measuring accuracy of
within 20% of the range during tests.

IM 05F01D02-01E (1)

6. Terminal Wiring Diagrams

NOTE

Do not use unassigned terminals as relay terminals.

■ UM350 Standard Type (Model UM350-䊐䊐)

* Wiring can only be carried out
for indicators with communication
functions.
Maximum baud rate: 9600 bps

1
2
3
4
5
6
7
8
9

10

UM

6
5
4

peak and bottom values

when DI1 is changed

7

Alarm 4 output

Relay contact output

NC

1

NO

2

COM

3

Contact rating: 250 V AC, 3 A

30 V DC, 3 A (resistance load)

Power supply

Power supply

L

N

* Wiring can only be carried out for

Before carrying out wiring, turn off the power to the
indicator and check that cables to be connected are
not alive with a tester or the like because there is
a possibility of electric shock.

8
9

10

Allowable range: 100 to 240 V AC (10%)

(free voltage)
50/60 Hz shared

RS-485 communication

SDB(+)

23

SDA(-)

24

RDB(+)

25

RDA(-)

26

SG

27

UM350-ⵧ1 or UM350-ⵧ2.

CAUTION

Alarm output

Alarm 1 output

Relay

Alarm 2 output

Alarm 3 output

Common

Relay contact rating: 240 V AC, 1 A

30 V DC, 1 A (resistance load)

AL1

AL2
AL3

COM

21
22
23
24

25
26
27

Resets the PV

from OFF to ON

Common

* Wiring can only be carried out
for indicators with 24 V DC
loop power supply.

24 V DC loop
power supply

+

21

21.6-28.0VDC
(30 mA DC max.)

-

22

11
12
13

Retransmission output

16
17

19

15 V DC loop power supply

20

Contact input

Contact

UM
DI1

.

19

20

COM

Contact rating: 12 V DC, 10 mA or more

+5V

16
17

16
17

DI1

COM

PV input

+

4-20 mA DC

-

+

14.5-18.0VDC
(21 mA DC max.)

-

Transistor contact

19

20

* Not configured at factory before shipment
See ,

Initial Settings User’s Manual

for more information.

12
13

TC input

+

-

11
12
13

RTD input
A
b

B

mV/V input

+

12

-

13

* PV retransmission is configured at factory
before shipment.

Load resistance: 600

Ω or less

* If 15 V DC loop power supply is used,
retransmission output cannot be used.

䊏

Receiving 4-20 mA DC Current

Signals with the Indicator

* When receiving 4-20 mA DC current signals,
set the PV input type to 1-5 V DC (setpoint “41”).

12

+

250 Ω

4-20mA

-

13

Note: Connecting a 250 Ω resistor to the terminals is
optional.
Model: X010-250-2 (resistor with M3.5 crimp-on
terminal lugs)

■ UM330 Standard Type (Model UM330-䊐䊐)

䊏

Receiving 4-20 mA DC Current

Signals with the Indicator

* When receiving 4-20 mA DC current signals,
set the PV input type to 1-5 V DC (setpoint “41”).

12

+

250 Ω

4-20mA

-

13

Note: Connecting a 250 Ω resistor to the terminals is
optional.
Model: X010-250-2 (resistor with M3.5 crimp-on
terminal lugs)

* Wiring can only be carried out
for indicators with 24 V DC
loop power supply.

24 V DC loop
power supply

21.6-28.0VDC
(30 mA DC max.)

Alarm 4 output

Relay contact output

NC

NO

COM

Contact rating: 250 V AC, 3 A

PV input

TC input

+

12

-

13

+

21

-

22

* Wiring can only be carried out for
1
2
3

30 V DC, 3 A (resistance load)

UM330-ⵧ1 or UM330-ⵧ2.

* Not configured at factory before shipment
See ,

Initial Settings User’s Manual

for more information.

RTD input
A

11

b

12
13

B

mV/V input

+

12

-

13

Alarm output

Alarm 1 output

Relay

Alarm 2 output

Alarm 3 output

Common

Relay contact rating: 240 V AC, 1 A

30 V DC, 1 A (resistance load)

AL1

AL2
AL3

COM

112113

12

23

22

1

2 8

6

3

UM

25

24

5

4

5
4
7

Retransmission output

+

16

4-20 mA DC

-

17

15 V DC loop power supply

+

16

14.5-18.0VDC
(21 mA DC max.)

-

17

19

17

16

27

26

9

7

6

Power supply

Power supply

L

N

Allowable range: 100 to 240 V AC (10%)

(free voltage)
50/60 Hz shared

* PV retransmission is configured at factory
before shipment.

Load resistance: 600

Ω or less

* If 15 V DC loop power supply is used,
retransmission output cannot be used.

Resets the PV

peak and bottom values

when DI1 is changed

from OFF to ON

Common

20

RS-485 communication

SDB(+)

23

SDA(-)

10

8
9

10

24

RDB(+)

25

RDA(-)

26

SG

27

CAUTION

Before carrying out wiring, turn off the power
to the indicator and check that cables to be
connected are not alive with a tester or the like
because there is a possibility of electric shock.

UM
DI1

.

COM

Contact rating: 12 V DC, 10 mA or more

* Wiring can only be carried out
for indicators with communication
functions.
Maximum baud rate: 9600 bps

Contact input

Contact

19

20

+5V

DI1

COM

Transistor contact

19

20

15 V DC Power Supply Wiring to Two-wire Sensor

External
resistor
(Note)

Two-wire transmitter

4-20mADC

Note: Connecting a 100  resistor to the terminals is optional.

Model: X010-100-2 (resistor with M3.5 crimp-on terminal lugs)

12

100

0.4 to 2.0 V DC signal

13

16

17

PV input

Loop power

supply

14.5 to

18.0 V DC

* Wiring can only be carried out for indicators with 24 V DC
loop power supply.

24 V DC Power Supply Wiring to Two-wire Sensor

250

12

PV input

1 to 5 V DC signal

13

21

Loop power

supply

21.6 to

28.0 V

22

DC

External
resistor
(Note)

Two-wire transmitter

4-20mADC

Note: Connecting a 250  resistor to the terminals is optional.

Model: X010-250-2 (resistor with M3.5 crimp-on terminal lugs)

IM 05F01D02-01E (2)