Description

Yokogawa SLCD‑151 Programmable Indicating Controller

Core Identity

• Model: SLCD‑151*E (Style E)
• Series: YS80 (rack‑mount instruments)
• Status: Discontinued (replaced by YS1500‑200)
• Type: Single‑loop programmable indicating controller
• Programming: Requires SPRG‑E Programmer (handheld/rack‑mount)

Key Specifications

I/O & Signals

• Analog Input: 5 points (1–5 V DC)
• Analog Output: 2 points (4–20 mA DC)
• Digital I/O: 8 inputs / 4 outputs (for sequence logic)
• Control Modes: PID, cascade, ratio, batch, dead‑time compensation

Display & Operation

• Indicator: Moving‑coil pointer + digital display
• Keypad: Front‑panel for parameter setup
• Programming: 46+ math/logic functions; EPROM‑based program storage

Physical

• Dimensions: 76 (W) × 178 (H) × 457 (D) mm
• Weight: ~3.4 kg
• Mounting: 19‑inch rack (48 mm width)
• Power: 100–240 V AC, 50/60 Hz

Environmental

• Operating Temp: 0–50 °C
• Humidity: 5–95% RH (non‑condensing)

Model Code Breakdown

• SLCD: Single‑Loop Controller (Display)
• 151: 1 = Moving‑coil indicator; 5 = Enhanced functions; 1 = Fixed
• E: Style E (standard rack‑mount)
• MTS: Mounting kit (common option)

Compatibility & Programming

• Programmer: SPRG‑E (for program write/monitor/EPROM burn)
• Compatible Series: YS80 rack instruments (SLPC, SPCM, SPLR, etc.)
• Replacement: YS1500‑200 (modern indicating controller)