YS170-012

The Yokogawa YS170-012 is a single-loop programmable controller from the YS170 series. It is designed for single-loop process control, with a programmable control function for handling a process variable and its associated control output. This ordering configuration is identified as the 220 V power supply version.

Power Supply and Model Identification

The -012 suffix identifies the 200 V power-supply version of the YS170. Yokogawa's YS100 series documentation specifies an allowable supply range of 138-264 VAC at 47-63 Hz, with a DC input range of 120-340 VDC. This is the supply configuration, not an indication of the controller's process input signal type.

Product Parameters

Parameter	Specification
Model	YS170-012
Brand	Yokogawa
Product Type	Single Loop Programmable Controller
Series	YS170
Power Supply Version	220 V AC class
AC Supply Range	138-264 VAC
AC Frequency	47-63 Hz
DC Supply Range	120-340 VDC
Dimensions	7.0 x 14.5 x 29.3 cm
Weight	1.1 kg

Product Lifecycle and Replacement

The YS170 is a discontinued Yokogawa controller. The manufacturer lists January 1, 2008 as its discontinuation date and identifies the YS1700 as its replacement series. Yokogawa's replacement guide maps the YS170-012 configuration to the YS1700-121.

The replacement should be checked against the installed controller's input options, communication functions, user program and mounting arrangement. The main model conversion alone does not establish complete application compatibility.

Frequently Asked Questions

Q: What does the -012 suffix mean on the YS170-012?

A: It identifies the 200 V power-supply version. The documented AC operating range is 138-264 VAC at 47-63 Hz.

Q: Is the YS170-012 a single-loop or dual-loop controller?

A: It is a single-loop programmable controller. It should not be confused with Yokogawa's dual-loop controller configurations.

Q: What is the recommended replacement for the YS170-012?

A: Yokogawa's replacement guide identifies the YS1700-121 as the corresponding replacement model. Verify the original input and communication options before selecting a replacement.

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