Digital Controllers

Digital Controllers (Process/Temperature Controllers)
HA series(HA400 / HA900)

  • Measurement accuracy: ±0.1% of displayed value
  • Sampling time: 0.025 sec.
  • Max. 2-CH control
  • Max. 2-point communication
  • Excellent control stability by PFF (Power Feed Forward)
  • Plug-in construction
  • Temperature
  • Process
  • High speed
  • Main features
  • Main specification
  • External dimensions
  • Models

Main features

Fast sampling of 0.025 sec.

Feedback control with sampling time of 0.025 sec. enables handling of fast changing process applications

PID and other parameters can be set in the unit of 1/100 seconds

Max. 2-CH control on a single instrument

Switchable between 1-loop, 2-loop, and cascade control.

Direct access keys

Switching between Auto/Manual, Remote/Local, Run/Stop is quick using direct access keys.
※Direct access keys can be disabled to prevent accidental key operation.

PFF (Power Feed Forward) input for excellent control stability

Excellent stability can be achieved using Feedforward control by detecting voltage fluctuation of the controlled object.

Main specification

  • Number of Inputs :(Max) 2 points ※IN2(2nd input) can be used as a REMOTE input.
  • Input type (Universal input within each group) ※See the Input Range Code for the input range.

1) Temperature/Current/Low voltage input group

Thermocouple: K, J, T, S, R, E, B, N, W5Re/W26Re, PLII
RTD: Pt100, JPt100
DC voltage (Low): 0 to 10mV, 0 to 100mV, 0 to 1V
DC current: 0 to 20mA, 4 to 20mA

2)High voltage input group

DC voltage (High): 0 to 5V, 1 to 5V, 0 to 10V

  • Sampling time: 0.025 sec.
  • Measurement accuracy : ±(0.1% of displayed value+1 digit ※Depends on the input and the range.
  • Main outputs (OUT1, 2, 3)
    ※OUT1, 2: Control output or analog retransmission output (option)
    ※OUT3: Event output (option) or analog retransmission output (option)

1) Relay contact output : 1a contact
2) Voltage pulse output for SSR driving: 0/12V dc
3) DC Current output : 0 to 20mA, 4 to 20mA dc
4) DC voltage output: 0 to 5V, 1 to 5V, 0 to 10V
5) SSR (Triac) output : Output: Current rating: 0.4A


<Specification of Options>

  • Auxiliary outputs (OUT4, 5): Relay contact output : 1a contact
  • Event (alarm) function: Max. 4 points
  • CT input for Heater break alarm (Max.2 points)
  • Analog retransmission outputs (Max. 3 points)

1) DC current output: 0 to 20mA, 4 to 20mA
2) DC voltage output: 0 to 5V, 1 to 5V, 0 to 10V

  • Non-isolated remote input: ※Not selectable in case of 2ch input

1) DC voltage input (Low): 0 to 10mV, 0 to 100mV, 0 to 1V
2) DC voltage input (High): 0 to 5V, 1 to 5V, 0 to 10V
3) DC current input: 0 to 20mA, 4 to 20mA

  • Digital inputs: Max.7 points ※Function can be selected from Event input logic selection
  • Communication function: RS-485 / RS-422A / RS-232C / CC-Link
  • Power feedforward input
  • Feedback resistance (FBR) input: 135Ω as standard

<General Specification>

  • Power supply voltage (Rating): 100 to 240V ac/24Vac/24Vdc
  • Ambient temperature: -10 to 50°C
  • Weight:

HA400 Approx.360g
HA900 Approx.460g

  • Safety standards: UL UL61010-1

cUL CAN/CSA-22.2 NO.61010-1

CE Marking:  Low Voltage Directive (LVD) EN61010-1

EMC Directive EN61326-1

RCM EN55011

External dimensions