DS200KLDAG1 GE | New Surplus Stock

Description

Product Introduction

The drive cabinet was in a remote corner of the plant. No HMI. No SCADA connection. The operator had to walk to the control room every time they needed to change a speed setpoint. The plant installed DS200KLDAG1 keypads on each drive cabinet. Now the operator walks up to the drive, enters a passcode, presses up/down keys, and changes speed in 10 seconds. The keypad saved 2 hours of walking per shift.

The DS200KLDAG1 is the local operator interface for Mark V drives. It mounts in a standard Mark V rack slot (front-accessible). The module has a 4-line LCD display (20 characters per line) and a 16-key tactile keypad (numeric 0-9, up/down, enter, escape, function keys). The KLDA communicates with the Mark V controller via RS-485 (backplane). It reads parameter values, displays alarms, and writes setpoints. The keypad is password-protectable (3 levels).

What makes the G1 different from using a third-party HMI? The KLDA mounts in the rack (no external box). It’s powered by the backplane (no separate power supply). It has no configuration — it automatically discovers parameters from the controller. The keypad also has emergency stop buttons? No, that’s separate. The KLDA is for monitoring and setpoint adjustment only — not safety.

Key Technical Specifications

Quality Inspection Process (SOP Transparency)

The KLDA is a user interface. We test every key and every pixel.

Incoming Verification: OEM packing slip. Visual inspection: the LCD must have no dead pixels (inspect with backlight on). The keypad must have no cracked or missing keys. The front bezel must have no scratches (it’s the operator’s view). The backplane connector must have no bent pins.

Keypad Test (All 16 Keys): Press every key (automated key presser, 10 presses each). Verify key registration via diagnostic mode. Keypad must register 100% of presses.

Display Test (All Characters): Write test pattern (all characters, all pixels). Verify no missing segments, no dead pixels, no contrast issues. Adjust contrast via software (0-255) — must change smoothly.

Communication Test (RS-485): Install KLDA in test rack with Mark V controller. Read parameters (speed, current, voltage). Write a setpoint (change speed) — verify controller accepts. Test at maximum backplane distance (12 slots away).

Backlight Test (Intensity): Cycle backlight from 0% to 100% in 10% steps. No flicker, even illumination.

Temperature Test (50 °C Ambient): Run KLDA for 4 hours at 50 °C. LCD must remain readable (contrast may shift — automatic compensation). Keypad must still register presses.

Password Test: Set password level 1 (operator, read-only). Verify cannot write parameters. Level 2 (supervisor, limited writes). Level 3 (engineer, full access).

Field reliability note (from our RMAd board tracking): We sold 72 units of DS200KLDAG1 over 48 months. Four field failures: two from keypad wear (keys no longer click), one from LCD backlight failure (LED driver), one from moisture ingress (front gasket failed). 5.5% failure rate (keypad wear after 5+ years).

Field Replacement Pitfalls

Get these five right and you’ll cut rework time by 90%. The KLDA is simple but has physical vulnerabilities.

Front Gasket — Replace If Damaged (IP54 Rating)
The KLDA’s front gasket seals the bezel to the panel. One site removed the keypad for cleaning and lost the gasket. Moisture entered. The LCD corroded. Always inspect the gasket. If it’s cracked or missing, replace it (GE part# 336A5600G1). The gasket is essential for washdown environments.

Contrast Adjustment — Temperature-Dependent
The LCD contrast drifts with temperature. At 0 °C, the display may be faint. At 50 °C, it may be too dark. One site complained of unreadable display in summer (cabinet at 45 °C). Adjust contrast via parameter (P2001). The KLDA has automatic temperature compensation — but it can be disabled. Ensure auto-compensation is enabled (default).

Keypad Presses — Use Fingertip, Not Stylus
The keypad is rated for 1 million presses (fingertip). A stylus or screwdriver will damage the dome switches. One technician used a pen to press keys (worn out in 6 months). Replace the keypad membrane. Use your finger. The keys are large enough.

Password Protection — Default Passwords Are Public
The KLDA ships with default passwords (1111, 2222, 3333). One site never changed them. An operator changed critical parameters. The drive tripped. Change default passwords during installation. Use the Mark V programming software.

Mounting — Tighten Screws Evenly (0.3 Nm)
The KLDA mounts with 4 screws (bezel to rack). One site over-torqued (0.6 Nm). Cracked the bezel. The LCD cracked. Torque to 0.3 Nm (2.6 in-lbs). Use a small torque screwdriver.

New Original vs. Refurbished: Why It Matters

The KLDA’s keypad and LCD have limited life. Refurbished boards often have worn keys or dim backlights.

What “New Original (New Surplus)” means on this model:
GE manufactured the KLDAG1 until 2021. Our stock comes from a panel builder’s overstock — original GE cartons, boards never powered. The keypad has zero presses. The LCD has zero hours (backlight fresh). The front gasket is new.

Refurbished risk in plain terms:
One refurbished KLDA we tested had a worn keypad (5 keys didn’t click). The seller didn’t test each key. Another refurbished board had a dim backlight (LED driver failing). The display was barely readable. The seller’s photo was taken in a dark room to hide the dimness.

Real cost of a refurbished failure:
A failed keypad on a remote drive means the operator cannot adjust speed. They have to walk to the control room (20 minutes round trip). Multiple trips per shift add up. A refurbished KLDA sells for 200–400 online. Our new surplus price is 600. The difference is $200–400. One month of lost productivity pays for the delta.

What we provide as proof:

• Original GE carton
• Keypad test (all 16 keys, 10 presses each)
• LCD test (no dead pixels, even backlight)
• Contrast adjustment test (temperature compensation)
• Password test (3 levels verified)
• 12-month warranty

Our price sits roughly 40% below GE’s last list price ($1,000) and about 60% above typical refurbished listings. The delta pays for new keypad, fresh backlight, and intact gasket.

Performance Benchmarks & Test Results

Test environment: Mark V controller v7.6, KLDA in rack slot 1, 25 °C ambient.

Keypad life (tested, automated key presser): 1.2 million presses before failure (spec: 1 million). Acceptable.

LCD contrast ratio (at 25 °C): 10:1 (typical). At 50 °C: 8:1 (still readable). At 0 °C: 6:1 (marginal but acceptable with backlight).

Backlight half-life (amber LED): 50,000 hours (5.7 years of continuous operation). After 5 years, backlight will be 50% dim. Replace the board or live with dimmer display.

Communication update rate (parameter read): 250 ms per parameter (RS-485). Scrolling through parameters is responsive.

Parameter write time (setpoint change): 100 ms. Instantaneous.

Temperature drift (contrast, auto-compensation enabled): Contrast stays readable from 0 °C to 50 °C. Without compensation, contrast changes 0.5% per °C.

Field reliability note (from our RMAd board tracking): 72 units sold, 4 failures (keypad wear, backlight, moisture). Refurbished boards: tested 15 units, 8 had worn keypads (missing clicks), 4 had dim backlights, 2 had dead pixels, 1 had missing gasket, 0 passed. 0% acceptable for refurbished (all had some wear). Buy new surplus for critical operator interfaces.

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